Multiple Choice
Photoautotrophs use
A) light as an energy source and methane as a carbon source.
B) light as an energy source and CO2 as a carbon source.
C) N2 as an energy source and CO2 as a carbon source.
D) CO2 as both an energy source and a carbon source.
E) H2S as an energy source and CO2 as a carbon source.
Correct Answer:

Verified
Correct Answer:
Verified
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