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Question:

Read the\u00A0supporting details\u00A0then correct the sentence below. Sentence 6: Furthermore it is well known that trees improve air quality; leaves filter the air we breathe, absorb pollution, and give off oxygen. Which of the following changes should be made to correct sentence 6?

A Insert a comma after \u201CFurthermore\u201D
Explaination

In order to correct sentence 6, you would need to insert a comma after \u201CFurthermore.\u201D A comma should be used to set off interjections and interruptions; therefore, it is necessary to place a comma after the interjection (\u201CFurthermore\u201D). The use of a semicolon after \u201Cquality\u201D is appropriate, as it is being used to join two independent clauses. The other answer options are not options that would make the sentence grammatically correct.