ACT English Quiz: Organization Unity And Cohesion

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Organization Unity And CohesionQuestion 1 of 20

The following passage is from a student's blog post about learning to repair bicycles.

[1] When my neighbor offered me a rusty road bike for free, I said yes before I thought about what "repair" would involve. [2] I watched a few tutorials and laid my tools on the porch: wrenches, rags, and a small jar of grease. [3] The first task was removing the rear wheel, which sounded simple until the chain refused to budge. [4] After twenty minutes of tugging, I realized I needed to shift into the smallest gear to release tension. [5] Once I did, the wheel slid out, and I finally felt like I was cooperating with the machine.

The writer is considering adding the following sentence after Sentence [2]: "My porch faces west, so by late afternoon the sunlight made it hard to see the chain."

Should the writer make this addition?

No, because it repeats information already stated about the porch and tools without adding any new context.

Yes, because it introduces a new setting that helps the reader understand where the bike came from and why it was rusty.

No, because it shifts focus to lighting conditions that are not important to the main sequence of repairing the bike.

Yes, because it provides a vivid detail that directly explains why the writer struggled with the chain in the next sentences.

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ACT English Quiz

ACT English Quiz: Organization Unity And Cohesion

Practice Organization Unity And Cohesion in ACT English with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Organization Unity And Cohesion, giving you a quick way to practice the rules, question types, and explanations that matter most for ACT English.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

The following passage is from a student's blog post about learning to repair bicycles.

The writer is considering adding the following sentence after Sentence [2]: "My porch faces west, so by late afternoon the sunlight made it hard to see the chain."

Should the writer make this addition?

No, because it repeats information already stated about the porch and tools without adding any new context.
Yes, because it introduces a new setting that helps the reader understand where the bike came from and why it was rusty.
No, because it shifts focus to lighting conditions that are not important to the main sequence of repairing the bike. (correct answer)
Yes, because it provides a vivid detail that directly explains why the writer struggled with the chain in the next sentences.

Explanation: This item tests relevance within a narrative sequence: an added detail has to move the story's cause-and-effect chain forward, not just decorate it. The paragraph tracks a chain of actions and consequences — accepting the rusty bike, laying out tools, trying to remove the rear wheel, discovering the chain was under tension, shifting into the smallest gear, and freeing the wheel. A sentence about the porch facing west and afternoon sunlight making the chain hard to see introduces lighting, which never causes or resolves anything in that chain, so it should be left out as a shift away from the main sequence. The answer calling it a vivid detail that explains the struggle is the strongest trap, but the passage is explicit that the obstacle was chain tension, not visibility; the answer about explaining where the bike came from and why it was rusty describes information the sentence simply does not contain; and the claim that it repeats what was already said is false, since the sunlight is new information — just off-topic. When a proposed sentence claims to explain a problem, check the passage for the problem's stated cause and reject the sentence if the two don't match.

Question 2

PASSAGE III: The Architecture of Sleep

¹ Sleep is often viewed as a passive state, a time when the body shuts down to conserve energy. In reality, however, sleep is a highly active and complex biological process. While we rest, our brains are engaging in a neurological workout that is essential for physical health and mental clarity. This nightly maintenance is (23) governed by two opposing forces: the sleep drive, which builds up the longer we are awake, and the circadian rhythm, an internal "clock" that regulates our sleep-wake cycle based on light and darkness.

² Once asleep, the brain cycles through four distinct stages. The first three stages are known collectively as non-rapid eye movement (NREM) sleep. During the deepest part of NREM, (24) heart rate slows down, blood pressure drops, and the body repairs tissues. (25) Conversely, the fourth stage is rapid eye movement (REM) sleep. In this phase, brain activity spikes to levels similar to wakefulness. This is the stage where dreaming occurs and (26) memories were consolidated from short-term to long-term storage.

³ One of the most critical functions of sleep is "taking out the trash." For years, scientists wondered how the brain, (27) unlike other organs, cleared out metabolic waste products. In 2013, researchers discovered the "glymphatic system," a macroscopic waste clearance system formed by glial cells. During deep sleep, these cells shrink, increasing the space between neurons by up to 60 percent. This allows cerebrospinal fluid (28) to flow rapid through the brain tissue, flushing out toxic proteins associated with neurodegenerative diseases. (32)

⁴ (29) Neglecting this biological need has serious consequences. Sleep deprivation impairs cognitive function, weakens the immune system, and increases the risk of chronic conditions like heart disease. (30) Experts recommend adults get between seven and nine hours of sleep per night. Despite these risks, modern society often treats sleep as a luxury rather than a necessity. Artificial lighting and digital screens (31) disrupts the production of melatonin, the hormone that signals to the body that it is time to rest.

⁵ We cannot cheat our biology. Caffeine and sheer willpower can only mask the symptoms of fatigue for so long. Eventually, the "sleep debt" must be repaid. By prioritizing sleep, we are not being lazy; we are investing in our long-term health. The architecture of sleep is built on a foundation of millions of years of evolution, and (33) it remains the most effective medicine we have. (34)

The writer wants to insert a sentence attributing the discovery of the "glymphatic system" to a specific researcher, Dr. Maiken Nedergaard. The most logical paragraph to add this detail would be:

Paragraph 1
Paragraph 2
Paragraph 3 (correct answer)
Paragraph 4

Explanation: This is a paragraph selection question. Choice C (Paragraph 3) is correct—Paragraph 3 is where the glymphatic system is introduced and explained ("In 2013, researchers discovered the 'glymphatic system'..."). Attribution to Dr. Nedergaard would logically go in the same paragraph where the discovery is discussed. Choices A, B, D are paragraphs that don't discuss the glymphatic system. Pro tip: Place specific details in the paragraph that discusses that topic.

Question 3

PASSAGE III: The Wood Wide Web

¹ When walking through a forest, it is easy to view trees as solitary individuals competing for sunlight and water. However, beneath the soil lies a hidden, complex infrastructure that tells a different story. Scientists have discovered that trees are interconnected by a vast subterranean network of fungi. This symbiotic system, known as a mycorrhizal network, allows plants to communicate, share resources, and (21) even protecting one another from danger.

² The network is formed by the microscopic threads of fungi, called mycelium. These threads weave through the soil and wrap around the roots of trees. The relationship is mutually beneficial: the trees provide the fungi with carbon produced through photosynthesis, and the fungi supply the trees with water and (22) vital nutrients extracted from the soil.

³ Perhaps the most astonishing aspect of the mycorrhizal network is its role as a communication highway. If a tree is attacked by aphids, for instance, it will send chemical warning signals through the fungal network. Neighboring trees, receiving these signals, (23) begins to pump defensive chemicals into their own leaves to deter the insects. (24) Furthermore, older "hub trees"—sometimes referred to as "mother trees"—use the network to siphon excess carbon and nitrogen to younger, struggling seedlings growing in the shaded understory.

⁴ (25) Because of logging and clear-cutting, these networks are highly fragile. When mature hub trees are removed from a forest, the entire system suffers. Younger trees are suddenly cut off from their primary nutrient source, and the soil itself becomes less stable. (26) The removal of these trees are a devastating blow to the forest's resilience.

⁵ (27) To put it briefly, ecologists are urging forestry departments to change their practices. By leaving the oldest trees intact and minimizing soil disruption, logging companies can harvest timber without destroying the hidden web that keeps the forest alive. (28) The forest is a cooperative community rather than a battlefield. Understanding this changes how we interact with the natural world. (29) As we learn more about these fungal networks, we must redefine what it means to be a "tree." (30)

Which choice best maintains the logical flow of the paragraph?

NO CHANGE — Furthermore, (correct answer)
However,
Alternatively,
For example,

Explanation: The correct answer is A (NO CHANGE — Furthermore). This question tests whether the transition word correctly signals the logical relationship between two sentences. The preceding sentence describes one remarkable capability of the mycorrhizal network: trees sending chemical warning signals to alert neighbors under attack. The sentence that follows describes another remarkable capability: hub trees channeling carbon and nitrogen to struggling seedlings. These are two separate examples of the same phenomenon — the network's ability to share information and resources. 'Furthermore' correctly signals addition: 'here is another thing this network does.' G ('However') signals contrast — but there is no contrast here; both sentences describe positive capabilities of the same system. H ('Alternatively') implies a choice between two options, which is not the relationship here. J ('For example') would imply the second sentence is a specific illustration of the first, but these are two distinct capabilities, not a general statement followed by an example. Pro tip: on transition questions, identify the logical relationship first — addition, contrast, cause-effect, or example — then find the transition word that matches.

Question 4

PASSAGE III: The Wood Wide Web

Which of the following alternatives to the underlined portion would be LEAST acceptable?

Consequently, ecologists are urging forestry departments
As a result, ecologists are urging forestry departments
For this reason, ecologists are urging forestry departments
On the other hand, ecologists are urging forestry departments (correct answer)

Explanation: The correct answer is D. This is a LEAST acceptable question — three transitions work logically and one fails. The context: Paragraph 4 established that these networks are fragile and that logging destroys them. Paragraph 5 then states that ecologists are urging forestry departments to change their practices. This is a clear cause-and-effect relationship: because the networks are being destroyed, ecologists are calling for change. A ('Consequently'), B ('As a result'), and C ('For this reason') all correctly signal cause-and-effect — they are functionally equivalent here and all acceptable. D ('On the other hand') signals contrast or opposition — as if the ecologists' response is somehow in tension with or contrary to what was just stated. But the ecologists' advocacy is a direct response to the problem described, not a contrasting viewpoint. Using 'On the other hand' would imply the passage is presenting two sides of a debate, when it is presenting a problem and its logical consequence. On LEAST acceptable questions, the wrong answer almost always fails because it signals the wrong logical relationship.

Question 5

PASSAGE III: The Science of Art Restoration

¹ For centuries, the restoration of classic paintings relied on a delicate, and often dangerous, physical touch. Restorers used to rely on harsh (21) chemicals, these solvents could easily strip away original layers of paint along with the dirt. Today, however, the intersection of art and technology has introduced a new era of preservation. The use of modern lasers and X-ray fluorescence (22) are revolutionizing the way museums care for their most prized artifacts.

² One of the most significant breakthroughs in restoration is the use of laser ablation. When a painting has accumulated centuries of soot or discolored varnish, conservators can fire a highly focused laser at the canvas. The laser (23) safely vaporizes the layer of grime. Because the dirt absorbs light at a different frequency than the original pigments, the laser removes the filth without heating or damaging the artwork beneath it. (24) On the other hand, the painting can reveal (25) it's true, original colors for the first time in centuries.

³ (26) Peeling away the darkened varnish, the brilliant blue skies of Renaissance landscapes are suddenly revealed to the restorers. This process allows experts to see the brushstrokes exactly as the artist intended.

⁴ In addition to lasers, restorers now use X-ray fluorescence (XRF) scanners to map the chemical composition of a painting. By analyzing the metallic elements present in the pigments, such as the lead in white paint or the copper in green paint, XRF scanners can look through the top layer of art. (27) This technology has allowed historians to discover hidden sketches and abandoned compositions painted over by the artists themselves.

⁵ It takes years of specialized training to master these technologies. A modern conservator must be a hybrid: part art historian, part chemist, and part technician. They are ultimately (28) responsible of preserving human history. By combining a deep respect for antiquity with the power of modern physics, they ensure that (29) old, antique masterpieces will survive for future generations to study and enjoy. (30)

Which choice provides the most logical transition at this point in the passage?

NO CHANGE
As a result, (correct answer)
However,
Similarly,

Explanation: The correct answer is B. The preceding sentence explains that the laser removes filth without heating or damaging the artwork. The following sentence states that the painting can then reveal its true colors. This is a cause-and-effect relationship: because the laser safely removes the grime, the original colors are revealed. "As a result" correctly signals this causal connection. A ("On the other hand") signals contrast — but there is no contrast here; the revealed colors are a direct consequence of the successful laser removal. C ("However") also signals contrast incorrectly. D ("Similarly") implies a parallel example is being introduced, which is not the case. Pro tip: Before choosing a transition, label the relationship: is the second idea a contrast, a result, an addition, or an example? Here, the cause is the laser's action and the result is the revealed colors — cause-and-effect demands "as a result" or equivalent.

Question 6

The writer is considering adding a sentence to the paragraph below.

[1] A good interview question invites a story rather than a yes-or-no answer. [2] That's why career counselors often suggest starting with "Tell me about a time when…". [3] The prompt encourages applicants to describe actions they took and what they learned. [4] It also gives interviewers a way to compare candidates using similar types of responses.

The writer is considering adding the following sentence after Sentence 1:

"Some interviewers prefer to begin with small talk about the weather."

Should the writer make this addition?

Yes, because it provides an example of an open-ended question that invites a story from the applicant.
Yes, because it introduces a contrasting approach that the paragraph can then explain is less useful.
No, because it shifts the paragraph away from effective interview questions and toward unrelated conversation topics. (correct answer)
No, because it contradicts the claim that interviewers want to compare candidates' responses.

Explanation: This question tests whether adding a sentence maintains paragraph focus and unity. The paragraph discusses effective interview questions, specifically those that prompt storytelling rather than yes/no answers. The proposed addition about weather small talk introduces a completely different type of interview opener that doesn't relate to the paragraph's focus on story-prompting questions. Choice C correctly identifies that this sentence shifts away from the main topic (effective interview questions) toward unrelated conversation topics. The addition doesn't provide an example of the recommended approach or serve as a useful contrast—it simply introduces irrelevant information. For add/delete questions, ensure new sentences directly support or enhance the paragraph's central argument rather than introducing tangential topics.

Question 7

PASSAGE III: The Architecture of Sleep

Which choice provides the most logical transition?

NO CHANGE
Therefore,
For example,
Finally, (correct answer)

Explanation: This is a transitions question. Choice D (Finally) is correct—signals the last item in a sequence. The paragraph lists four sleep stages (three NREM, then REM), and "Finally, the fourth stage" appropriately introduces the last one. Choice A (Conversely) emphasizes contrast, which works but doesn't signal sequence as clearly. Choice B (Therefore) suggests causation. Choice C (For example) suggests illustration. Pro tip: For numbered sequences, "Finally" or "Lastly" work well for the final item.

Question 8

PASSAGE III: The Architecture of Sleep

The writer wants to add the following sentence to Paragraph 3: "Without this nightly wash cycle, these toxins accumulate like trash piling up in a hallway." The best placement for this sentence would be:

Before Sentence 1.
After Sentence 2.
After Sentence 3.
After Sentence 4. (correct answer)

Explanation: This is a sentence placement question. Choice D (After Sentence 4) is correct—Sentence 4 describes "flushing out toxic proteins," and the new sentence about "Without this nightly wash cycle" refers back to that flushing process. The metaphor elaborates on what happens without the clearance system. Choices A, B, C place it before the flushing mechanism is described. Pro tip: Place sentences after the content they refer to or elaborate upon.

Question 9

The sentence 'The storm caused significant damage in the coastal areas, leading to power outages and flooding.' should be placed:

[1] The weather report had predicted severe conditions. [2] Many residents had been advised to evacuate their homes. [3] Emergency services were on high alert and ready to respond.

Where should the sentence be placed?

After Sentence [3]
After Sentence [1]
After Sentence [2] (correct answer)
Before Sentence [1]

Explanation: This question tests logical sentence placement in a cause-and-effect sequence. The given sentences establish: weather prediction (1), evacuation advice (2), and emergency preparedness (3). The sentence about storm damage and consequences should come after sentence 2 because it logically follows from the evacuation advice - people were told to evacuate because the storm would cause the damage described. Placing it after sentence 2 creates a clear progression: prediction → precautionary advice → actual consequences → emergency response. The damage description provides the reason why residents were advised to evacuate, making this placement most coherent.

Question 10

Where should the following sentence be placed? 'The new research center focuses on renewable energy technologies.' [1] The facility is equipped with state-of-the-art laboratories. [2] Scientists from around the world collaborate here. [3] The center aims to develop sustainable solutions for the future. [4] It has received substantial funding from the government.

After Sentence [4]
After Sentence [2]
After Sentence [3]
After Sentence [1] (correct answer)

Explanation: This question tests logical placement of information about a research center's focus within facility description. The sentence about focusing on renewable energy technologies should come first after establishing that it's a new research center, providing the fundamental purpose before discussing equipment, collaboration, goals, and funding. The logical flow becomes: facility focus → state-of-the-art equipment → international collaboration → sustainable goals → government funding. This placement allows the energy focus to provide context for understanding why the facility has advanced labs, attracts international scientists, and received substantial funding. For placement questions about research facilities, establish the research focus before describing supporting infrastructure and resources.

Question 11

The following passage is from a report about a school's cafeteria composting program.

[1] Students scrape leftover fruit peels and sandwich crusts into green bins labeled "Compost Only." [2] Custodians roll the bins to a fenced area behind the gym, where the contents are mixed with dry leaves collected each fall. [3] The mixture heats up as microbes break down the waste, and after several months it becomes dark, crumbly compost. [4] The finished compost is used in the school's garden beds to enrich the soil for vegetables.

The writer is considering deleting Sentence 2. Should the writer keep or delete this sentence?

Delete it, because it is too specific about locations and distracts from the timeline of how compost forms.
Keep it, because it introduces a new argument about recycling plastics that strengthens the report's main claim.
Delete it, because it repeats the information in Sentence 1 about where students place their food scraps.
Keep it, because it explains what happens to the bins after students fill them and connects the cafeteria step to the composting process. (correct answer)

Explanation: This question tests whether to keep or delete a sentence for unity and coherence. The paragraph describes the step-by-step process of the composting program, from collection to use. Keeping Sentence 2 is essential because it bridges the student action in the cafeteria to the outdoor mixing and decomposition, maintaining the logical timeline of the process. Keeping it for an argument about recycling plastics is wrong because the sentence doesn't mention plastics, and deleting it would leave a gap in how the scraps move from bins to the fenced area. In add/delete questions, evaluate if the sentence contributes to the paragraph's focus, such as advancing a process or providing necessary connection.

Question 12

The writer is considering adding a sentence to the draft below.

[1] During wildfire season, my town posts daily air-quality updates online. [2] The numbers can feel abstract, so a local nurse taught residents how to interpret them. [3] She explained that an index above 150 can irritate lungs, especially for children and older adults. [4] She also recommended simple steps, like running a fan with a filter and keeping windows closed.

The writer is considering adding the following sentence after Sentence 2:

"Air-quality indexes are calculated using measurements of pollutants such as fine particulate matter."

Should the writer make this addition?

Yes, because it defines what the index measures and helps readers understand what the numbers represent. (correct answer)
Yes, because it shifts the focus from health advice to the nurse's professional background.
No, because it repeats information already stated about which groups are most affected by poor air quality.
No, because it introduces technical detail that distracts from interpreting the index and taking practical steps.

Explanation: This question tests whether adding a sentence enhances or disrupts paragraph unity and reader understanding. The paragraph focuses on a nurse teaching residents how to interpret air-quality numbers and take practical steps. The proposed addition defines what air-quality indexes measure, which directly supports the paragraph's goal of helping readers understand "abstract" numbers. Choice A correctly identifies that this sentence provides essential background information that makes the index numbers more meaningful to readers. The definition doesn't shift focus or repeat information—it clarifies what's being measured before explaining how to interpret the measurements. This follows the logical principle of defining terms before using them. For add/delete questions, consider whether the sentence enhances reader comprehension of the main topic.

Question 13

Should the sentence 'Overall, the conference was a great success, with many attendees expressing positive feedback.' be kept or deleted?

Paragraph: The annual tech conference featured keynote speakers from leading technology companies. Various workshops and panels provided valuable insights into the latest industry trends.

Kept, because it summarizes the outcome of the conference. (correct answer)
Kept, because it emphasizes the success of the event.
Deleted, because it does not add new information.
Deleted, because it shifts focus from the workshops and panels.

Explanation: This question tests whether a concluding sentence adds value by summarizing outcomes. The paragraph describes conference content (keynote speakers, workshops, panels) but lacks information about the event's reception or success. The proposed sentence provides important closure by indicating the conference achieved its apparent goals and was well-received. This summary statement ties together the various elements mentioned and gives readers a sense of the overall outcome, rather than leaving them with just a list of activities. Keep concluding sentences that provide meaningful synthesis of the preceding information.

Question 14

"The Vertical Forests of Milan\n\n¹ In 2014, the skyline of Milan, Italy, began to change in a way that surprised many observers. Two residential towers, known as Bosco Verticale (Vertical Forest), rose above the Porta Nuova district. At first, [1] Italian architect Stefano Boeri envisioned these structures, critics were skeptical. They claimed that planting trees on balconies was a gimmick that would cause structural issues. Boeri, however, believed the naysayers were totally wrong. [2]\n\n² Boeri's design called for the towers to host 900 trees, 5,000 shrubs, and 11,000 floral plants. This "living facade" not only improves air quality but also regulates temperature. The vegetation, which includes oak, beech, and larch trees act [3] as a natural shield against the intense Mediterranean sun. To ensure the safety of the structure, botanists tested the wind resistance of the trees in a wind tunnel. Similarly, [4] the engineering team reinforced the concrete balconies with steel to support the immense weight of the soil.\n\n³ The result is a self-sufficient ecosystem that changes colors with the seasons. In autumn, the leaves turn golden and red; in winter, they fall to let in sunlight. [5] Residents live nestled among the branches, enjoying a connection to nature rarely found in urban environments. Boeri's work has inspired similar projects in China and the Netherlands, proving that architecture and ecology can collaborate [6] to create sustainable cities. As cities grow denser, the Vertical Forest offers a blueprint for a greener future, demonstrating that nature need not be pushed, to the margins, [7] of urban life.\n\n⁴ The project's success suggests a new path forward for urban planning. [8] By integrating living systems into high-rise buildings, architects can help reduce the carbon footprint of cities. [9]"

Which choice provides the best introduction to the paragraph?

NO CHANGE (correct answer)
Boeri was born in Milan in 1956.
The cost of maintaining the trees is included in the residents' fees.
Some critics still argue that the towers are too expensive to build.

Explanation: This is an organization, unity, and cohesion question testing paragraph introductions. You can tell because an entire sentence is underlined at the beginning of a paragraph, and the question asks which choice "provides the best introduction to the paragraph." A strong topic sentence introduces the main idea of its paragraph and connects logically to the essay's overall argument. Read the rest of the paragraph to identify its focus, then choose the opening sentence that best signals that focus to the reader. Effective topic sentences often contain key terms or concepts that will be developed in the paragraph. Choice A (NO CHANGE) is correct because "The project's success suggests a new path forward for urban planning" introduces the paragraph's focus on the broader implications and future applications of the Vertical Forest. The paragraph then discusses how the innovation can "reduce the carbon footprint of cities," which directly relates to this "new path forward." Choice B ("Boeri was born in Milan in 1956") is a biographical detail unrelated to the paragraph's focus on environmental impact and future implications. Choice C ("The cost of maintaining the trees is included in residents' fees") is a practical detail that doesn't introduce the forward-looking, visionary theme of the paragraph. Choice D ("Some critics still argue that the towers are too expensive") focuses on criticism and cost concerns, which doesn't align with the paragraph's optimistic focus on the project's success and its potential to inspire future urban planning innovations. Pro tip: To quickly identify the best topic sentence, read the REST of the paragraph first, summarize its main point in your head, then pick the opening sentence that best matches your summary. The ACT loves to include distractors that are factually accurate but don't actually introduce the paragraph's focus. Don't be fooled by interesting details—they must serve the paragraph's purpose!

Question 15

"The Comet Hunter\n\n¹ Born in Hanover in 1750, Caroline Herschel was not destined for scientific fame. Her mother viewed education as unnecessary for a girl, insisting that Caroline train only in household chores. In 1772, however, [10] Caroline's brother William rescued her from this limited life, bringing her to Bath, England, to join him. William was a musician with a growing passion for astronomy, and it wasn't long before Caroline begun [11] to share his enthusiasm.\n\n² Caroline served as William's assistant, a role that required both physical stamina and intellectual precision. She ground and polished the metal mirrors for their telescopes, a task that often left her hands raw. William observed the heavens at the eyepiece, she sat [12] by a window, recording his data and double-checking his calculations. She worked diligently, [13] ensuring that every coordinate was accurate. It was during these long nights that she learned the geography of the night sky.\n\n³ Encouraged by William, Caroline began using a small Newtonian sweeper telescope to conduct her own observations. On August 1, 1786, she spotted a slow-moving object that wasn't on any star chart. It was a comet; the first [14] of eight she would discover over the next decade. Her success brought her international renown. In 1787, King George III granted her an annual salary of £50. This salary made [15] her the first woman in history to receive official payment for scientific work.\n\n⁴ Caroline's contributions extended beyond her comet discoveries. She compiled a massive catalogue of stars and nebulae, updating the work of the astronomer John Flamsteed. [16] This catalogue remained a standard reference for nearly half a century. If Caroline were [17] to see the advanced instruments used by astronomers today, she would marvel at their power, yet her meticulous methods would still be relevant. Caroline Herschel's life proved that curiosity and perseverance could break through the social barriers of the eighteenth century. [18]"

The writer wants to add the following sentence to the essay: In 1828, she was awarded the Gold Medal of the Royal Astronomical Society, an honor no other woman would receive for another 168 years. The sentence would most logically be placed at:

Point [9] in Paragraph 4. (correct answer)
The end of Paragraph 2.
The end of Paragraph 3.
The beginning of Paragraph 1.

Explanation: This is an organization, unity, and cohesion question testing sentence placement. You can tell because the question presents a new sentence and asks where it "would most logically be placed" among four paragraph locations. You must match the content and theme of the new sentence to the appropriate paragraph. For placement questions, identify the key information and topic of the sentence you're adding, then scan each paragraph to find where that information fits thematically. The sentence should connect to the paragraph's focus, provide relevant support or examples, and fit logically in the sequence of ideas. Don't place it where it would be redundant, off-topic, or disruptive. Choice A (Point [18] in Paragraph 4) is correct because the sentence describes a major late-career honor (1828 Gold Medal), and Paragraph 4 discusses Caroline's contributions and lasting legacy. Placing it at the end of the final paragraph creates a strong conclusion that emphasizes her pioneering status—"an honor no other woman would receive for another 168 years" reinforces the essay's theme about breaking social barriers. This is chronologically appropriate (late in her life) and thematically fitting (legacy and recognition). Choice D (beginning of Paragraph 1) is incorrect because it would introduce a specific achievement before readers know who Caroline Herschel is or what she accomplished. The 1828 date would be confusing when the paragraph is establishing her background from 1750-1772. Choice B (end of Paragraph 2) focuses on her work as William's assistant, not her independent achievements or honors. The Gold Medal recognized her solo work, so it fits better later. Choice C (end of Paragraph 3) discusses her salary from 1787 and being the first woman paid for scientific work. While thematically related, the 1828 Gold Medal is a separate, later achievement that belongs in the conclusion where the essay discusses her lasting impact and legacy. Remember: For placement questions involving chronological information (dates, "later in her life," "eventually"), pay attention to the timeline. Place earlier events in earlier paragraphs and later events in later paragraphs. Pro tip: Concluding achievements and honors often belong at the end of biographical essays because they cap the narrative of the person's accomplishments. If you see a sentence about "the first" or "an honor no one else received," it often belongs in the final paragraph!

Question 16

Which choice most effectively combines the sentences at the underlined portion?

NO CHANGE
£50, making (correct answer)
£50, she was made
£50; making

Explanation: This is an organization, unity, and cohesion question testing sentence combining. You can tell because the question asks which choice "most effectively combines the sentences" rather than simply which is grammatically correct. This signals you need to create smooth, efficient sentence flow. For sentence combining questions, look for ways to eliminate choppiness or redundancy while preserving meaning. Participial phrases (ending in -ing) and relative clauses are common tools for combining sentences smoothly. Choose the option that's grammatically correct AND creates the most elegant, flowing construction. Choice B (£50, making) is correct because it uses a participial phrase ("making her the first woman...") to smoothly combine the two sentences. The comma + "-ing" phrase modifies the entire preceding clause, showing the result or significance of the salary. This creates a sophisticated, flowing sentence that eliminates the choppiness of "This salary made" starting a new sentence. Choice A (NO CHANGE - "This salary made") is acceptable but choppy—it uses a simple pronoun reference ("This salary") to start a new sentence, which feels redundant after just mentioning "£50" in the previous sentence. The combined version is more elegant. Choice C ("£50, she was made") creates a comma splice—two independent clauses joined by only a comma without a coordinating conjunction. Choice D ("£50; making") is incorrect because you can't use a semicolon before a participial phrase. Semicolons require independent clauses on both sides, but "making her the first woman" is not independent. Remember: The ACT loves participial phrase combining! When you see "sentence 1... something happened. Sentence 2 starts with This/That + action," you can often combine with a comma + -ing phrase. This is more sophisticated than using "This" or "That" to start the second sentence. Pro tip: Participial phrases create cause-effect or result relationships smoothly. "He won the lottery, making him a millionaire" is more elegant than "He won the lottery. This made him a millionaire."

Question 17

"Turn Right at the Big Pine\n\n¹ My father believed that road maps were for people who lacked a sense of adventure. He preferred to navigate by instinct, landmark, and the occasional contradictory tip from a gas station attendant. Consequently, [19] our annual family trips to the Cedar Creek campground were rarely straight lines; they were sprawling, improvisational loops through the backroads of Oregon.\n\n² I was ten years old, sitting in the backseat of our station wagon, squeezed between a cooler full of soda and my sleeping brother. The air outside was thick with the scent of pine and dust. We had been driving for six hours, [20] but according to Dad, we were "just around the river bend." He pointed to a massive, gnarled tree standing sentinel at a fork in the road. "That's the Big Pine," he declared with the confidence of a ship captain spotting land. "We turn right here."\n\n³ We turned right. The pavement immediately gave way to gravel, and the road narrowed until the blackberry bushes were scraping the sides of the car. My mother, who had been quietly reading a novel, looked up. "Honey," she said, her voice dropping an octave, "I don't think this is the way to the campsite." Dad waved a hand dismissively. He insisted that this was a shortcut he had discovered years ago. [21]\n\n⁴ Ten minutes later, the road ended abruptly at a rusted gate marked "Private Property." A cow stared at us blankly from the other side. Silence filled the car. The cow chewed its cud, looking entirely unimpressed by our arrival. [22] Without a word, Dad shifted the car into reverse. As we backed down the dusty trail, he caught my eye in the rearview mirror and winked. "Well," he said, "now we know what's down that road." For him, the wrong turn wasn't a mistake; it was just another part of the story. [23]\n\n⁵ [1] We eventually found the campsite, arriving just as the sun was setting behind the mountains. [2] I realized then that the destination mattered less to him than the wandering it took to get there. [3] Years later, when I drive [25] my own kids on vacation, I keep a GPS on the dashboard. [4] But sometimes, when I see a strange road winding off into the trees I feel [24] a familiar tug to turn the wheel."

The writer decides to move this sentence to the beginning of the paragraph. The paragraph would primarily lose:

The humor derived from the cow's reaction to the silence. (correct answer)
The contrast between the father's confidence and the dead end.
The description of the rural setting.
The logical chronological sequence of the encounter with the cow.

Explanation: This is an organization, unity, and cohesion question testing the effect of sentence movement on narrative structure. You can tell because the question says "The writer decides to move this sentence" and asks what the paragraph would "primarily lose" as a result. You must understand how sentence order affects meaning, emphasis, and impact. For questions about moving or deleting sentences, consider what rhetorical effect is created by the current placement. Does the sentence's position create emphasis, build suspense, establish chronology, or deliver a punchline? If moved, what specific effect would be lost? Focus on the primary function of the sentence's placement, not just any function. Choice A (The humor derived from the cow's reaction to the silence) is correct because the current sentence order creates comedic timing: "Silence filled the car" sets up an expectant pause, and then "The cow chewed its cud, looking entirely unimpressed" delivers the humorous punchline. The cow's indifference to the family's dramatic moment creates irony. Moving this sentence to the beginning would destroy this comedic beat by removing the setup-punchline structure. Choice D (chronological sequence) is not the primary loss because the paragraph would still maintain chronological order—the cow encounter happens regardless of where this specific sentence appears. Choice B (contrast between confidence and dead end) is incorrect because that contrast is established by the gate marked "Private Property" and the father backing down the road, not by the cow's reaction. Choice C (description of rural setting) is wrong because moving the cow sentence wouldn't eliminate rural setting details—those exist elsewhere in the paragraph (gravel road, blackberry bushes, dusty trail). Remember: In narrative writing, sentence order often creates emphasis, builds tension, or delivers humor. The ACT tests whether you understand how placement affects impact and tone. Pro tip: When you see a question about moving a sentence that includes a funny detail or ironic observation, consider whether its current position creates a setup-punchline structure. Humor often depends on timing and order—moving the punchline to the beginning ruins the joke!

Question 18

Which transition word or phrase is most logical in context?

NO CHANGE (correct answer)
However,
In fact,
Furthermore,

Explanation: This is an organization, unity, and cohesion question testing transition word logic. You can tell because only a transition word is underlined, and the question asks which is "most logical in context." You must determine the cause-effect relationship between the father's navigation preference and the resulting trips. To choose the correct transition, identify whether the ideas are connected by cause-effect, contrast, addition, similarity, or example. For cause-effect relationships, use transitions like "consequently," "therefore," "as a result," or "thus." Read carefully to see if one idea logically leads to or causes the other. Choice A (NO CHANGE - Consequently,) is correct because it signals a cause-and-effect relationship: because the father preferred to navigate by instinct rather than maps (cause), the family trips became winding, improvisational routes (effect). "Consequently" means "as a result," which perfectly captures this logical connection. Choice B ("However,") signals contrast or opposition, but there's no contrast here—the winding trips are a direct result of his navigation style, not a contradiction of it. Choice C ("In fact,") signals emphasis or elaboration of the same idea, which doesn't fit—we're not elaborating on his preference; we're describing its consequence. Choice D ("Furthermore,") signals addition of similar information, but the second sentence isn't adding another preference; it's describing the outcome of the first sentence's preference. Remember: Cause-and-effect transitions are crucial for showing logical connections! When one sentence describes a behavior or characteristic and the next describes what happens as a result, use "consequently," "therefore," or "as a result." Pro tip: "Consequently" literally means "following as an effect"—if you can rephrase as "As a result of [first sentence], [second sentence]," then "consequently" is probably right.

Question 19

"The Art of Kintsugi\n\n¹ When a ceramic bowl breaks in the West, it is usually discarded. In Japan, however, a broken object is sometimes viewed as an opportunity for artistic renewal. This is the philosophy behind kintsugi ("golden joinery"), the centuries-old art of repairing broken pottery with lacquer dusted with powdered gold. Instead of hiding the fractures, the kintsugi master highlights it, [44] transforming the scars into the object's most beautiful feature.\n\n² The process is neither quick nor easy. The artisan must first piece the shards together using urushi, a natural lacquer derived from the sap of the Chinese lacquer tree. Because urushi is related to poison ivy, it can cause severe rashes if touched, so the artisan must work carefully to avoid skin contact. Once the adhesive hardens, which can take weeks, the cracks are painted with more lacquer and then sprinkled with fine gold powder. This [45] creates a striking contrast between the dark ceramic and the glowing veins of gold.\n\n³ The origins of kintsugi are often traced back to the fifteenth century. Legend has it that the shogun Ashikaga Yoshimasa sent a damaged Chinese tea bowl back to China for repairs. It returned held together with ugly metal staples. Displeased by the clumsy appearance, [46] Yoshimasa ordered his craftsmen to find a more aesthetic solution. The result was a method that not only restored the bowl but also made it totally cooler than it was before. [47]\n\n⁴ Kintsugi is closely related to the philosophy of wabi-sabi. [48] This worldview embraces imperfection and transience. By emphasizing the cracks, kintsugi celebrates the object's history rather than erasing it. The repaired vessel is considered more valuable than the new one because it has survived a trauma and emerged stronger. In an age of mass production and disposable goods, this ancient practice offers a reminder that breaks, and repairs, [49] are part of the beauty of existence. [50]"

Which choice best creates a logical transition from the preceding sentence?

NO CHANGE (correct answer)
Despite the repairs,
In addition to the metal,
As a result of the journey,

Explanation: This is an organization, unity, and cohesion question testing transition logic between sentences. You can tell because the choices offer different introductory phrases that establish different relationships with the preceding sentence. To choose correctly, identify the logical connection between what came before and what follows. The transition should accurately reflect this relationship. Choice A (NO CHANGE - "Displeased by the clumsy appearance,") is correct because it creates a clear cause-and-effect relationship. The previous sentence explains that the bowl "returned held together with ugly metal staples"—an unsightly repair. The current sentence tells us Yoshimasa "ordered his craftsmen to find a more aesthetic solution." "Displeased by the clumsy appearance" logically connects these ideas: BECAUSE the shogun was displeased with how the bowl looked, he sought a better repair method. This transition perfectly explains his motivation. Choice B ("Despite the repairs,") suggests contrast or contradiction, implying Yoshimasa took action even though the bowl was repaired—but his dissatisfaction was precisely BECAUSE OF how it was repaired, not despite it. Choice C ("In addition to the metal,") doesn't make logical sense—he wasn't adding to the metal staples, he was rejecting them. Choice D ("As a result of the journey,") incorrectly suggests the journey itself (not the poor repair) motivated his action. Pro tip: For transition questions, identify the logical relationship first: Is it cause-effect? Contrast? Addition? Time sequence? Then check if the transition accurately signals that relationship. "Displeased by" signals a motivation or cause for the action that follows—a classic cause-effect transition.

Question 20

Which choice best maintains the focus of the paragraph? [1] The city is known for its vibrant arts scene. [2] Galleries and theaters attract visitors year-round. [3] There are many parks and recreational areas. [4] Festivals and performances are frequent.

NO CHANGE
The city also hosts international artists. (correct answer)
The city has a rich history.
The arts are supported by local government.

Explanation: This question tests maintaining paragraph focus on a specific topic. The paragraph centers on the city's vibrant arts scene, discussing galleries, theaters, and festivals. The underlined sentence about parks and recreational areas introduces a completely different aspect of the city that doesn't relate to arts and culture. Choice B about hosting international artists maintains the arts focus while adding relevant new information about the scope and quality of the arts scene. For focus questions, select options that stay within the established topic area rather than introducing unrelated but potentially positive aspects of the subject.