Why are carbon dioxide concentrations expected to increase?
a.
carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase.
b.
carbon dioxide concentrations are expected to increase, because of an increase in agriculture.
c.
carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use.
d.
all of the above

Answer;

-All of the above

A. Carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase, increase in agriculture and increase, because more land will have to be cleared for increasing populations and agricultural use.

Explanation;

-Atmospheric carbon dioxide concentrations are expected to increase, because practices that are responsible for carbon emissions are expected to increase. With an increased demand for energy caused by an increasing population, fossil fuel burning is expected to increase. When fossil fuels burn, carbon dioxide is released into the atmosphere.

-Additionally, the clearing of forests for agriculture and living space that occurs in response to increasing populations causes a release of carbon dioxide into the atmosphere.

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