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raketka [301]
3 years ago
13

When in U.S, history did pollution start to become an issue? Explain why pollution was not an issue prior to this time period.

Biology
1 answer:
sasho [114]3 years ago
8 0

Answer:

pollution began to be a problem in 1800's.

Explanation:

more people meant more rubbish. industry also added to this

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