Directions: Read and answer the questions below. Write your answers on the answer sheet
1. It is given off by animals and people during respiration. _____
2. A gas given off by plants and is taken in by man and animals during respiration is called _______.
3.A common air pollutant from exhaust motor vehicles is _____.
4. The most abundant gas on earth is ______
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Answer:
1.Carbon dioxide 2.Carbon dioxide 3.Carbon monoxide(CO) 4.Nitrogen
Explanation:hope it helps