Assuming a constant temperature which sample below would you expect to be at the highest pressure?

Boyle’s law

The relationship between the volume and pressure of a given amount of gas at constant temperature was  published by the  Robert Boyle over 300 years ago. It is added in the statement now known as Boyle’s law: The volume of a given amount of gas held at constant temperature is inversely proportional to the pressure under which it is measured.So in this case temperature remain constant while pressure increased.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.