Why does the C/N ratio decline over time?
A) Mass increases over time.
B) Mass is converted into microbes over time.
C) Mass is converted into plants over time.
D) More carbon is introduced into the system.
B
Biology & Microbiology
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Biofuels ____
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A) 16 B) 8 C) 12 D) 2 E) 4
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Biology & Microbiology