Fill in the blank: Elements found in the same vertical columns ( Group 1A, 2A, etc.) Will share common properties. In the periodic table, the vertical columns of elements are called groups, or .

10 years is the answer

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.