Microorganisms are important to the carbon cycle because, without them:
A)carbon dioxide would not be liberated into the atmosphere for use by autotrophs.
B)organic carbon in oxygen-free environments could not be cycled.
C)primary producers would be limited by nitrogen availability.
D)there would be no chemoautotrophs.

Question

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The Answer of Microorganisms are important to the carbon cycle because, without them:
A)carbon dioxide would not be liberated into the atmosphere for use by autotrophs.
B)organic carbon in oxygen-free environments could not be cycled.
C)primary producers would be limited by nitrogen availability.
D)there would be no chemoautotrophs.

Microorganisms Are Important to the Carbon Cycle Because, Without Them