A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

10 meters per second

Explanation:

Hope this helps!

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.