38.7k views
2 votes
Air pollution comes from _____.

User Ah Bon
by
7.4k points

2 Answers

4 votes
Factories and cars are two big factors.
Hope this helps~!
~{Isle of flightless birds}
User Samiul Alam
by
8.3k points
2 votes
cars, buses, planes, boats, factories, cities...etc
User Haydenmuhl
by
7.8k points

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