Which of the following sentences best defines paraphrasing? a.) when paraphrasing, you shorten the passage to omit repetition. b.)when paraphrasing, you rewrite a passage in your own words. c.)when paraphrasing you state the main idea in the passage. d.)when paraphrasing you evaluate wether a passage is factual or opinionated.

The sentences that best defines paraphrasing is option B "When paraphrasing, you rewrite a passage in your own words". The main purpose of paraphrasing is to report (orally or written) the same idea or concept without changing its meaning. To express the same with other words. They might be your own words, but sometimes you need to use some determined word/s such as in a written exercise.

He discusses the problem of human destruction of nature and gives solution to prevent it.