1. (04.01 LC) Based on the law of conservation of mass, which of the following statements is correct? (5 points)
O Matter is neither created nor destroyed.
O Matter can be created butit cannot be destroyed.
O The total mass of substances before a reaction is less than the total mass after a reaction,
O The total mass of substances before a reaction is greater than the total mass after a reaction.

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.