What is the specific heat of silver if it takes 68.0 cal to raise the temperature of a 61 g silver bar by 20.0 ∘C?

that's what i got you can count the number of atoms

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.