Which definition describes activation energy?

the speed at which reactants form products in a chemical reaction

the short-lived, high-energy intermediate between reactants and products

the diagram showing a change in energy between reactants and products

the minimum energy that a set of reactants must attain before reaction can occur

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

b.

the accuracy of the data.

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.