Question 4 of 30 Which statement best describes a chemical change?
O A. A substance changes size or phase.
OB. Atoms are made and destroyed.
C. The nuclei of atoms are rearranged.
O D. Substances form new substances.
SUBMIT

c. the scientist provides unbiased information to the government.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

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.