__________ is a by-product of photosynthesis.
A) Water
B) Sugars
C) Oxygen
D) Carbon dioxide
Correct Answer:
Verified
Q4: Deep marine carbon dioxide is returned to
Q5: Reservoirs expand and contract because of changes
Q6: Some dead plant material escapes from the
Q7: The most important greenhouse gas is
A) phosphorus.
B)
Q8: A plant requires only _ to build
Q10: Isotopically light carbon that _ preferentially extract
Q11: Photosynthesis requires two things, and they are
A)
Q12: Carboniferous fossil fuels were formed in
A) river
Q13: Chemical weathering processes on land use up
Q14: Oxygen isotopes in bivalve shells show a
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