The rows of a periodic table are called and the columns are called ) periods, (2) points (1) periods, (2) groups (1) families, (2) periods (1) groups, (2) periods

1) periods (which go across the Periodic Table) and 2) groups (which go down the Periodic Table)

I believe the answers A.(1)Periods,(2)Groups hope this helps tell me if I'm wrong :)

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.