You mix two liquids together, and they begin to bubble. has a chemical reaction occurred? why or why not?

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

i don,t know so just answer mine

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.