The atomic mass is calculated by adding together which two parts of the atom? a) protons and neutrons b) protons and electrons c) electrons and neutrons d) elements and protons

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.

diaria maybe go see a doctor about that