Which of the following statements are true about energy and bonds? Check all that apply.
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A. Bonds are formed without energy being added or removed.
B. Energy must be put in to break a bond.
C. Atoms come together when bonds are broken.
D. When bonds are formed, energy is released.
SUAMI

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

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.