Why does changing the volume of a container change the pressure of the gas in it?
a: changing the volume reduces the number of molecules so they hit the walls of the container less often.
b: changing the volume reduces the force with which the molecules hit the walls of the container.
c: changing the volume increases the speed of the molecules so they hit the walls of the container more often.
d: changing the volume increases the area that the molecules collide with so the force is spread over a larger area.

i think it's d but not sure

D

Changing the volume increases the area that the molecules collide with so the force is spread over a larger area.

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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.