Indicate which of the numbers in the following equations are coefficients and which are subscripts
3h2so4 + 2al > al2 (so4)3 + 3h2

explanation: no but i do not usually comment

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.