A hot gas flowing through a pipeline can be considered as a: a) reversible process
b) irreversible process
c) both of the mentioned
d) none of the mentioned

B) irreversible process

Explanation:

The process given here is irreversible.

so she was walking and she stepped on warm jeffy , uh uh uhh dadye i just pooped my pants

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.