Question and answer
1. A substance that enters Earth's cycles and does harm to living things is A. a pollutant. B. oxygen. C. freshwater. D. hydrogen.
A substance that enters Earth's cycles and does harm to living things is a pollutant.
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Expert answered|Score 1|yumdrea|Points 43526|
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Asked 6/10/2018 9:24:29 AM
Updated 10/22/2019 2:11:43 AM
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Confirmed by yumdrea [10/22/2019 2:11:40 AM]
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