Describe each type of mountain. Include the type of boundary where they are likely formed and characteristics of each. Folded Mountains
Fault-block Mountains

a electronegativity decreases beacuse the size of nucleus is bigger.

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.