How has Earth's atmosphere been influenced by the fact that, as part of the carbon cycle, some amount of carbon is stored in sedimentary rocks and is not immediately re-introduced back into the atmosphere?

A. The storing of carbon in sedimentary rocks
allowed for Earth's atmosphere to remain
the same for the last 4 billion years.
B. The storing of carbon in sedimentary rocks
allowed for oxygen to become a main
component of the Earth's atmosphere.
C. The storing of carbon in sedimentary rocks
resulted in carbon not becoming an integral
part of Earth's atmosphere.
D. The carbon cycle is not related to the
composition of Earth's atmosphere.


B

Biology & Microbiology

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