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6. A substance that enters Earth's cycles and does harm to living things is A. oxygen. B. hydrogen. C. freshwater. D. a pollutant.

6. A substance that enters Earth's cycles and does harm to living things is A. oxygen. B. hydrogen. C. freshwater. D. a pollutant.
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3 votes
6. A substance that enters Earth's cycles and does harm to living things is

A. oxygen.
B. hydrogen.
C. freshwater.
D. a pollutant.

asked
User Eric Kamara
by
7.8k points

1 Answer

6 votes
C Pollutant just like emissions or oil spills
answered
User VirtualMichael
by
8.0k points
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