In the 19th century pollution made the bark of many tree go black. Explain why

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asked Mar 17, 2018 221k views

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Igor Kustov · Answer 1 · 2018-03-22T11:08:05+0000

Briefly, the moth has several genetic forms, the most famous being the “typical” or white form, which is ivory colored with peppery black spots: i can give more info if u like?

In the 19th century pollution made the bark of many tree go black. Explain why

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