Biology, 01.08.2019 23:00 Anliz0179

Which of the following is an example of a natural source of air pollution? a. burning coal releases carbon dioxide. b. cows release methane gas during digestion. c. plowing crops releases dust particles. d. mining releases solid particles into the air.

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Which of the following is an example of a natural source of air pollution? a. burning coal releases...

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