Directions: This question presents a sentence, all or part of which is underlined. Beneath the sentence you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is the best, choose the first answer; otherwise choose any one of the others.
The light from a firefly is said to be “cold” because the insect's utilization of the energy is so efficient that a little of it is converted into heat.
Reveal answer
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