AP Environmental Sciencemediummcq1 pt
The largest reservoir of carbon on Earth is
A.sedimentary rocks and fossil deposits
B.the atmosphere
C.living biomass
D.freshwater lakes
Explanation
Core Concept
Limestone and buried organic carbon lock up most of Earth's carbon over geologic time; the atmosphere and biosphere hold far less.
Correct Answer
Asedimentary rocks and fossil deposits
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