The sound of a bus passing by is an example of an (open, efficient) system because some chemical energy is transformed to sound and other energy is transformed to (thermal, electric) energy and mechanical energy. Which two is it. Need ASAP

Explanation:

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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.