Which of the following statements is true concerning a heating curve?

a. it is a pie chart that shows the phases of a substance.

b. it is a bar graph that shows a change over time.

c. it shows the phase changes of a substance over time.

d. it has nothing to do with heating a substance.

jjj89t'ji; it hink the answer is your mom is not si

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.