B. They become extinct
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As far as I know it should be D. A dolor flare as it may harm satellite and aircraft flying near poles
Answer:
Scientists have determined that humans are disrupting the nitrogen cycle by altering the amount of nitrogen that is stored in the biosphere. The chief culprit is fossil fuel combustion, which releases nitric oxides into the air that combine with other elements to form smog and acid rain.
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Answer:
So you can be more active and do different things that need energy
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