Carbon dioxide (CO2) is
A) removed from the atmosphere during photosynthesis.
B) a source of carbon.
C) returned to the atmosphere during respiration and fermentation.
D) used by marine organisms to make limestone for their hard shells.
E) All of these choices are correct.
Correct Answer:
Verified
Q4: Which of the following is not correct
Q5: The thin envelope of life that surrounds
Q6: Thiobacillus thiooxidans is found in an environmental
Q7: The conversion of nitrate (NO3 ) to
Q8: Which is mismatched?
A)parasitism - one organism benefits
Q10: Which of the following can carry out
Q11: The oxidation of ammonia (NH4+) to nitrate
Q12: The terrestrial realm of the biosphere is
Q13: A group of organisms of the same
Q14: Life would not be possible without
A)autotrophs.
B)primary consumers.
C)secondary
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