Biology, 30.06.2021 19:40 avamcneil412

How have humans changed the global nitrogen cycle? A. They have greatly decreased the amount of fixed nitrogen.
B. They have raised the speed at which nitrogen travels through the
cycle.
C. They have lowered the speed at which nitrogen travels through the
cycle.
D. They have greatly increased the amount of fixed nitrogen.

Answers: 1

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How have humans changed the global nitrogen cycle? A. They have greatly decreased the amount of fix...