Air pollution happens when wastes are poured into the atmosphere and the air becomes ________ and unpleasant to breathe. A. contaminate B. contamination C. contaminated D. contaminative

Air pollution happens when wastes are poured into the atmosphere and the air becomes ________ and unpleasant to breathe.

A. contaminate     
B. contamination
C. contaminated   
D. contaminative

Trả lời

Chọn đáp án C

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