Define mass defect. the difference in mass between an atom and the sum of its separate components energy released in a radioactive reaction an atom with too many neutrons the difference in mass between a radioactive atom and a nonradioactive atom energy absorbed in a radioactive reaction

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

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.