Multiple Choice
In global terms,the production of CO2 by respiration and its fixation by photosynthesis are balanced,but the balance has been shifted towards accumulation of CO2 by the increase in use of
A) meat products.
B) vegetable products.
C) fossil fuels.
D) all types of foods.
E) nuclear energy.
Correct Answer:

Verified
Correct Answer:
Verified
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