A Major Perturbation of the Carbon Cycle by Human Activity

Multiple Choice

A major perturbation of the carbon cycle by human activity is associated with

A) release of carbon from carbonate rocks.
B) release of carbon from fossil fuel deposits.
C) removal of carbon from the atmosphere in the industrial production of fertilizers.
D) accelerated removal of carbon from the atmosphere by forests.
E) respiratory production of CO₂ by the large human population.