Eutrophication occurs when
A) trophic levels change.
B) nitrogen is no longer limiting.
C) algal blooms die off.
D) nitrogen fixation releases N2.
E) none of the above
Correct Answer:
Verified
Q1: In the systems approach to biogeochemical cycles,
A)
Q2: In the carbon cycle,
A) photosynthesis always balances
Q3: Nitrogen fixation
A) is the product of respiration
Q4: Mutualistic bacteria in legumes
A) include the cyanobacteria.
B)
Q6: The phosphorus cycle differs from the nitrogen
Q7: The carbon cycle differs from the nitrogen
Q8: The increase in oxygen in the atmosphere
A)
Q9: Which of the following is not a
Q10: Which of the following is not a
Q11: Human agriculture is threatened by
A) humus in
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