The boy's parents are worried about him, and violence is not a good thing, so this suggests that he must have an inclination towards violence. The correct answer is therefore “propensity,” which means natural inclination towards or tendency to do something. “Distaste” is an antonym of "propensity"; it means dislike or aversion; "facade" means the front part of a building that faces the street or a false pretense or appearance; "defense" means way of protecting oneself against a threat; and “estimation” is an approximation or a guess.

From the context of the sentence, you can reasonably determine that the answer choice must be another word for “fight.” This should lead you “brawl,” which is a chaotic and disorderly fight, usually involving more than two people. As for the other answer choices, “daze” means a state of being stunned or confused and momentarily not reacting to one's surroundings; “fleet” means a group of ships; “argument" means dispute involving spoken statements; and "organization" means orderliness or official group.

You are looking for an answer choice that describes a long journey, so the correct answer is “trek.” To provide further help, a “runt” is the smallest of a group; “tirade” means an angry speech; and “divide” means separate into two or a specified number of parts or groups. 

We are told that biologists struggled to do something due to a lack of a uniform naming system. Here the word “uniform” means standardized or accepted by everyone. So, it makes sense that Carl Linnaeus would change the world of biology by introducing a logical naming system, or “nomenclature.”

As the play is four hours long, we can infer that after a couple of hours, the play would be half over. At the halfway point of most long plays there is a break where the audience can get up and walk around, also known as an “intermission.” 

Based on the sentence, the students are trying to get Mr. Applebaum to talk about something other than the lesson. When a person does this, it is called "going off on a tangent," meaning straying from the original line of thought.

A "hangar" is like a garage for planes. Since the pilot drove immediately to the location, "hangar" is the only answer that makes sense. A "garage" performs a similar function as does a "hangar," but it does so exclusively for cars, buses, and trucks. A "dock" performs this function for boats, not planes.

In this problem you need to determine which of these answer choices is a synonym for "posture." The correct answer is "stance," which means position, posture, or attitude. To provide further help, a "prophecy" is a prediction; a "feat" is an accomplishment; an "accolade" is a certificate or trophy given in praise; the "trajectory" of something is the expected path it will take.

Based on the context of this sentence it is clear that the answer you are looking for should reflect the definition winnings, money earned through a game or luck. The correct answer is therefore "windfall." To provide further help, "grievances" are complaints; "hazards" are dangers; "downtime" is time for relaxing, time away from work; a "donation" is something given freely to someone else. 

As a student you probably are aware that in order to go on a field trip you need to have the "permission" of your parents. So, the correct answer must mean something like permission, agreement, approval. The correct answer is therefore "consent." "Consent" can be used as a noun or a verb, but either way refers to the permission. To provide further help, a "vocation" is a job; a "feat" is an accomplishment; "adhesive" is glue, something that sticks; an "idiosyncrasy" is a personality quirk, an unusual trait in a person.