The "cosmos" is the universe, including the Earth, the planets, stars, and other astronomical bodies, so "universe" is the correct answer.

The "duration" of something is the amount of time for which it lasts, so "length" is the correct answer. As for the other answer choices, the “temperature” is how hot or cold something is; the “weight” of something is how heavy it is; and “depth” means how deep something is relative to another point, such as the surface of the earth or the surface of the ocean.

An ”activity” is energy and movement, or something you do, like a "hobby." A “nightmare” is a bad dream; and a “desire” is something you want, while "desire" is wanting.

"Regulation" is a noun that can mean "a rule or directive made and maintained by an authority" or "the action or process of regulating or being regulated." So, we need to pick out an answer choice that means something like "a rule made by an authority" or "the process of regulating." While "regurgitation," like "regulation," begins with the letters "reg," "regurgitation" means "the act of bringing swallowed food up again to the mouth," so its meaning is not the same as "regulation." "Law," however, is a noun that can mean "an individual rule as part of a system of law," and because "law" is the answer choice closest in meaning to "regulation," "law" is the correct answer.

A "legacy" is something handed down from the family that has come before you. "Heritage" is the best match because it means things or traditions that are acquired from an ancestor.

When two things are "similar," they are not completely equal in appearance or nature, but they are at least "alike." A strict equivalence is too alike to be called a "similarity." For example, two cars of the same make, model, year, and color could be called identical. However, we would call two cars that have bodies that are alike to each other, though not quite the same and of different colors "similar."  Likewise, we might say that someone has eyes that are similar to his or her parents, even though they are not exactly alike. Therefore, the word "resemblance" is the best option since it expresses such "likeness" without absolute equivalence.

If you are on the "verge" of something, you are on the edge or border of that thing, so "edge" is the correct answer. None of the other answer choices are close in meaning to "verge": a "continent" is a large land mass; a "voyage" is a trip by sea; a "prank" is a joke or trick usually played on another person; and "agreement" means the state in which one has the same opinion or position as another person or other people.

When someone is in "distress," he or she is in danger. For instance, there is the classic phrase about a "damsel in distress," meaning there is a lady in danger in some way. "Distress" can describe being in great pain or sorrow. It can also be used for those kinds of situations that cause pain and sorrow. Such situations are dangerous. Thus, just as in the expression used above, to be "in distress" means to be in danger. Hence, danger is the best option for this question at least.

The adjective "arrogant" is used to describe someone who is very "full of himself or herself." That is, such a person has a very big opinion of himself or herself, thinking that he or she is the best person (at least in some set of traits or activities). The word "arrogance" is used to describe the character trait of "being arrogant." For example, we could say, "Peter's arrogance prevented him from seeing that he was actually making a fool of himself." This means that Peter had such a high opinion of himself that he couldn't even see that he was behaving foolishly. Arrogance is a lot like pride, which is the best option among those provided here.

A "trait" is some characteristic or property of a given person or thing. For instance, we speak of "character traits" to describe someone's personality. We can also say that an inanimate object has certain traits. For example, a couch could have the trait of being very soft. These kinds of properties are also "features" of the given thing. Think of a microwave that has certain "features" such as special timers and the ability to cook at various degrees of intensity. Though we usually use "trait" to describe people, we could also call these features "traits" of the microwave.