biogeochemical cycle

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The burning of fossil fuels has the greatest and most direct impact on the

Carbon is used to make sugars in which step of the carbon cycle?

Movement of carbon from geosphere to the atmosphere can be accomplished by

Carbon is removed from the atmosphere through what process?

In which reservoir is dissolved carbon dioxide abundant?

What are the primary sources of energy that drive the movement of matter among reservoirs?

Where is carbon stored in the largest amounts on Earth?

Of these, which force is most directly responsible for creation of fossil fuels?