Energy Flow Through Ecosystems

AP Biology· difficulty 2/5

Which arrow represents the process that REMOVES CO2 from the atmosphere?

A
$Plants -> Atmosphere (respiration)$
B
$Atmosphere -> Plants (photosynthesis)$
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C
$Animals -> Atmosphere (respiration)$
D
$Fossil fuels -> Atmosphere (combustion)$

Explanation

Photosynthesis fixes atmospheric CO2 into organic compounds in plants, the major biological sink for CO2.

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