To get the volume of the block of wood you need to use the method of water displacement, which means all of the block must displace water. What do you need to do to get the total volume of the block of wood inside the tank?

fe 55.85 g/mol and h2o 18.02 g/mol.

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.