Biology, asked by kumarisshristi57, 5 months ago

which one is primary pollutant ...CO,,,SO2,,,,Smoke,,,,all of the above

Answers

Answered by auxi17

4

SO2

Explanation:

Primary pollutants include ammonia, sulfur dioxide, nitrogen dioxide and carbon monoxide.

Answered by Anonymous

6

Answer:

SO2

Explanation:

maybe, who cares?..........

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