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Consider this model of the carbon cycle.
What factors influence the input and output of carbon through Earth's spheres?
Responses
A The oceans on Earth act as carbon sinks.The oceans on Earth act as carbon sinks.
B The combustion of fossil fuels contributions to an increase in atmospheric carbon dioxide.The combustion of fossil fuels contributions to an increase in atmospheric carbon dioxide.
C Animals are solely responsible for the release of carbon dioxide via respiration.Animals are solely responsible for the release of carbon dioxide via respiration.
D Atmospheric CO2 is continuously exchanged with the oceans and on land.Atmospheric CO 2 is continuously exchanged with the oceans and on land.
E Man's activities on Earth contribute to the decrease of atmospheric CO2.Man's activities on Earth contribute to the decrease of atmospheric CO 2 .
F Vegetation and soil take in more CO2 than they release.
A
B
D
F