Which law motion is used to explain how to a rocket takes off

newtons 3rd law

Explanation:

if the engine is supplying propulsion, then the mass will be pushed by it.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

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.