Humans Intervene in the Nitrogen Cycle in Several Ways

question 36

Multiple Choice

Humans intervene in the nitrogen cycle in several ways.Which of the following is one of those ways?

• A) Burning fossil fuels adds nitric oxide.
• B) Agriculture decreases the production of nitrous oxides.
• C) Protecting and replanting forests releases nitrogen.
• D) Harvesting nitrogen-rich crops stores nitrogen in the topsoil.
• E) Agriculture with fertilizers uses nitrogen in the aquatic systems.

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