Which of the following cycles is thought to be most under biological control?
A) oxygen
B) phosphorus
C) sulfur
D) lead
Correct Answer:
Verified
Q38: Q39: Why are carbon dioxide fluctuations more pronounced Q40: Biological nitrogen fixation is accomplished by Q41: Q42: Soil formation and soil characteristics have major Q44: The biogeochemical cycles of one ecosystem are Q45: A danger of nitrogen saturation is Q46: The major process regulating phosphorus availability for Q47: Which region contains the largest amount of Q48: Carbon cycles more quickly through cold and
A)protozoans.
B)bacteria.
C)fungi.
D)plants.
A)increased productivity.
B)basic
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