The _____ cycle begins with the weathering of rock.
A) nitrogen
B) carbon
C) phosphorus
D) water
E) energy
Correct Answer:
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Q29: The total amount of energy trapped by
Q30: Which of the following is not an
Q31: The net primary productivity is the amount
Q32: In the water cycle,animals return water to
Q33: Secondary consumers are
A) herbivores.
B) bacteria.
C) All of
Q35: You go on a canoe trip to
Q36: As an overall average,about _ of the
Q37: A food chain is a series of
Q38: Carbon returns to the atmosphere
A) as carbon
Q39: Nitrogen-fixing bacteria convert atmospheric N2 into
A) nitrates.
B)
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