Answer:
1. burning of fossel fuel....
2. industrial emission....
3. indoor air pollution....
4. wildfire....
5. transportation....
6. open burning of garbage waste....
this helpfull !!
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Answers & Comments
Answer:
1. burning of fossel fuel....
2. industrial emission....
3. indoor air pollution....
4. wildfire....
5. transportation....
6. open burning of garbage waste....
this helpfull !!