Classify each of the following as a pure substance, a mechanical mixture, or a solution. soil, perfume, baking powder, glass cleaner.

Soil is a Mechanical Mixture

Perfume is a Solution

Baking powder is a Pure Substance

Glass Cleaner is a Solution

yes

explanation:

search chemistry final b exam in google and a site called quizlet will pop up

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.