The picture below shows a lit bulb. Which sentence explains what happens to the electric energy as the light shines?
a) The electric energy gets used up.
b) The electric energy changes into light and heat energy and is destroyed,
c) The electric energy is created again after it produces light and heat energy.
d) The electric energy changes into light and heat energy and is not destroyed.

D) the electric energy changes into light and heat energy and is not destroyed

Explanation:

Energy can not be created or destroyed

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.