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Which of the following is not an air pollutant?

1. carbon dioxide
2. carbon monoxide
3. particulate matter
4. sulfur dioxide

User Ayonix
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2 Answers

14 votes
14 votes
CO2 is not a pollutant it is found naturally in our atmosphere
User Verena Praher
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17 votes
17 votes
Answer: 1. Carbon dioxide is not an air pollutant

Explanation: it can be toxic and or safe
User Lorenzo Montanari
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