Calculate the mass of water in which 1.00 g of MgSO4.7H20 should be dissolved so that the resulting solution will be 20.0% MgSO4 and 80.0% water by mass. (MgSO4•7H20 consists of 51.17% H20 and 48.83% MgSO4 by mass)

the answer is 0.8m.

by: nicholas

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.