One human impact on the phosphorus cycle occurs through: a. burning of fossil fuels. b. the erosion of agricultural lands. c. the greenhouse effect. d. global warming. e. depletion of the ozone layer.

One human impact on the phosphorus cycle occurs through:

a. burning of fossil fuels.

b. the erosion of agricultural lands.

c. the greenhouse effect.

d. global warming.

e. depletion of the ozone layer.

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