Refer to the figure.
A river with 5,000 kg/km2/yr of nitrogen input from human activities would be expected to export _______ kg/km2 of nitrogen per year.
A) 500
B) 800
C) 1,150
D) 1,500
Correct Answer:
Verified
Q41: Soluble phosphorus combines with iron to form
Q42: Refer to the figure. Q43: If the flow of water into a Q44: How does the nutrient cycle of aquatic Q45: Rivers and streams subjected to high amounts Q47: In the 1950s, anthropogenic eutrophication of Lake Q48: A nutrient-poor lake with low primary productivity Q49: Which of the following is not a Q50: Why is upwelling important for the commercial Q51: Refer to the figure.![]()
Figure 1

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