Students were asked to write a response as to how energy is used when driving a car. Their responses are written below. Student 1: Energy is used to stop a car. Student 2: Energy is used to turn a car. Student 3: Energy is used to cause a car to go faster. Student 4: Energy is used to allow a car to move in a straight line. Which student’s response is least likely indicating a change in motion?

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the maximum mass of nh3 is nh3 in grams

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.