PSAT Reading and Writing Quiz: Function Of A Word Or Phrase

Historians once described the Industrial Revolution as a sudden break from premodern life, but newer scholarship emphasizes gradual change. In many English towns, household spinning and weaving expanded for decades before factories dominated production. This continuity suggests that industrialization built on existing skills and local trade networks rather than replacing them overnight. At the same time, factory labor did introduce novel forms of discipline, including time clocks and centralized supervision. The revised account thus balances long-term development with recognition of genuinely new workplace institutions.

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Historians of science note that new instruments often change what questions researchers can ask. The invention of the cloud chamber made subatomic particle tracks visible, turning theoretical entities into observable patterns. This development helped physicists test competing models of radiation and matter. Even so, instruments do not speak for themselves; interpretation depends on assumptions about how the device interacts with the phenomenon. For that reason, debates about measurement can persist even after a tool becomes widely adopted.

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In discussions of algorithmic fairness, some propose removing sensitive attributes like race from training data. But excluding these variables can still leave models biased because other features may act as proxies. This problem explains why fairness efforts often require auditing outcomes, not just inputs. Nevertheless, collecting sensitive data for audits can raise privacy concerns and legal constraints. As a result, researchers explore methods that protect individual information while still enabling bias detection.

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Some art historians argue that Impressionism was revolutionary mainly because of its visible brushwork. Yet the movement's innovations also depended on new commercial galleries that allowed artists to bypass official salons. This institutional shift changed how paintings reached audiences and how reputations were built. At the same time, critics in traditional academies continued to shape public taste by controlling prizes and commissions. Understanding Impressionism thus requires attention to both technique and the art market that sustained it.

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Conservation biologists sometimes propose relocating threatened species to new habitats as climates shift. This strategy can backfire if the relocated species disrupts existing food webs or carries novel pathogens. A well-known amphibian relocation, for example, coincided with disease spread in nearby populations, though causation remains debated. Because of such risks, many scientists argue that assisted migration should be considered only after habitat protection and connectivity measures have been exhausted. The debate therefore centers not on whether intervention is possible, but on how to weigh urgency against ecological uncertainty.

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Biostatisticians warn that correlations in health data can be misleading when important variables are omitted. For example, a study might find that people who carry lighters have higher lung-cancer rates, even though the real driver is smoking. The point is not that data analysis is futile, but that causal claims require careful design and interpretation. Randomized trials can help, though they are not always ethical or feasible. Researchers therefore combine multiple approaches to approximate causal inference responsibly.

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In art history, the term "avant-garde" is often used as if it described a single, unified movement. In practice, groups labeled avant-garde have differed sharply in politics and aesthetics, from Dada's antiwar satire to Futurism's celebration of speed and violence. Recognizing these differences prevents critics from treating innovation as automatically progressive. Yet the label persists because it captures a shared stance of opposition to established norms. A careful account therefore uses the term while specifying which tradition and goals are at stake.

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Ecologists increasingly study "trophic cascades," in which changes to top predators reshape entire ecosystems. When wolves were reintroduced to Yellowstone, elk spent less time browsing in open valleys, allowing willow and aspen to recover. That vegetation rebound, in turn, stabilized stream banks and expanded habitat for beavers and songbirds. Still, some researchers caution that drought cycles and human hunting also influence elk behavior, making it difficult to attribute every plant increase to wolves alone. Even so, the Yellowstone case remains a vivid illustration of how predator management can have far-reaching, indirect effects.

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Geologists use isotopic dating to estimate the ages of rocks, but the method depends on assumptions about initial conditions. If a mineral has been heated enough to allow isotopes to diffuse, its "clock" may partially reset, yielding an age younger than the rock's formation. This is why metamorphic terrains often contain minerals that record multiple events, such as burial and later uplift. Nevertheless, cross-checking different minerals with different closure temperatures can help reconstruct a sequence of changes. Interpreting dates, then, requires linking laboratory measurements to a rock's thermal history.

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Biologists studying invasive species often look for traits that help newcomers outcompete native organisms. However, some invasions fail even when the introduced species grows quickly and reproduces often. This complication indicates that success depends not only on an invader's traits but also on the vulnerability of the ecosystem it enters. For instance, diverse communities may resist takeover by using resources more completely. Thus, predicting invasion outcomes requires considering both organism biology and local ecological context.

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Scholars analyzing ancient epics note that repeated phrases can serve both aesthetic and practical purposes. Because oral poets composed in performance, formulaic lines provided ready-made building blocks that fit the poem's meter. This account helps explain why the same descriptive epithets recur even when they seem redundant to modern readers. Nonetheless, repetition can also be meaningful, signaling thematic connections across distant episodes. Interpreting these patterns therefore requires attention to both composition practices and literary effect.

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Some commentators claim that online activism is ineffective because it rarely produces immediate policy change. Yet digital campaigns have sometimes succeeded by rapidly coordinating boycotts that pressure firms to alter practices. This example suggests that influence can occur through markets as well as through legislation. Still, such successes are uneven and may depend on media attention that is difficult to sustain. A more accurate assessment therefore treats online activism as one tool whose effects vary by context and target.

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Anthropologists studying gift economies emphasize that exchange can create social bonds rather than maximize profit. In the Kula ring of the Trobriand Islands, participants circulate shell valuables in opposite directions across a network of trading partners. The objects' value lies partly in the relationships and obligations they sustain, not in their usefulness. Some economists caution that such systems still involve strategic behavior, including status competition. Even so, the Kula ring remains a powerful case for understanding exchange as a cultural practice.

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Astronomers infer the presence of exoplanets using indirect measurements rather than direct photographs. In the transit method, a planet is detected when it passes in front of its star and causes a small, regular dip in brightness. Because the size of the dip depends on the planet's radius, the method can estimate how large the planet is. However, it preferentially finds planets whose orbits align with Earth's line of sight, biasing the catalog toward certain systems. Combining transit data with other techniques helps correct that selection effect.

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Some educators argue that handwritten note-taking improves learning because it forces students to summarize rather than transcribe. In a controlled study, students who took notes by hand scored higher on conceptual questions than peers who typed verbatim. The result is often cited as evidence that the medium shapes cognitive processing during lectures. Yet the advantage shrinks when typists are trained to paraphrase, indicating that strategy may matter more than tool. Therefore, teaching effective note-taking habits may be more important than mandating a specific format.

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Engineers promoting electric vehicles often highlight the absence of tailpipe emissions. However, the climate benefits depend partly on how the electricity that charges the batteries is generated. If a grid relies heavily on coal, charging can indirectly produce substantial emissions. On cleaner grids, the same vehicle can have a much lower lifetime carbon footprint. Therefore, transportation electrification is most effective when paired with decarbonizing the power sector.

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Urban ecologists increasingly argue that cities can function as "novel ecosystems," shaped by both human design and spontaneous biological adaptation. Because impervious surfaces absorb and re-radiate heat, many cities develop urban heat islands that raise nighttime temperatures relative to surrounding rural areas. This thermal shift can lengthen growing seasons and allow some heat-tolerant species to expand their ranges into city centers. However, the same conditions can also stress native plants and increase energy demand for cooling, complicating claims that urban biodiversity gains are uniformly beneficial. Recognizing these trade-offs helps researchers evaluate which interventions—such as tree canopy expansion—reduce harms without assuming that all urban ecological change is positive.

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Some economists claim that remote work increases productivity by reducing commuting time and allowing employees to customize their work environments. Yet surveys of remote workers often rely on self-reported output, which can inflate perceived gains. To address this concern, a recent analysis compared objective performance metrics from a software firm before and after its remote-work transition. The firm's bug-fix rate rose modestly, but only for experienced employees; newer hires showed no improvement. These findings suggest that remote work can boost productivity, though the effect depends on how performance is measured and on worker experience.

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Literary critics have debated whether the narrator of a novel can be trusted to report events accurately. In the opening chapter, the narrator contradicts a detail that appears in the book's later letters and diary entries. This inconsistency encourages readers to treat the narration as a constructed perspective rather than a transparent record. Nonetheless, unreliability does not mean the narrator is lying; it can also reflect limited knowledge or self-deception. Recognizing these possibilities helps explain why the novel invites multiple interpretations of the same scene.

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Marine biologists monitor coral reefs to understand how warming oceans affect biodiversity. When water stays unusually warm, corals expel the algae that feed them, leading to "bleaching" and often death. Because bleaching reduces habitat complexity, fish and invertebrate populations can decline even in areas not directly damaged by storms. Some reefs, however, show partial recovery after heat waves, especially where local pollution is controlled. These mixed outcomes suggest that climate stress interacts with local management conditions.

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