Iron is lost from oceans when it combines with _____ and precipitates.
A) nitrogen
B) silicon
C) phosphorus
D) carbon
Correct Answer:
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Q17: What percentage of solar energy is captured
Q18: Terrestrial primary productivity can be quantified by
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Q23: Aquatic ecosystems can be limited by silicon
Q24: Which of the following is NOT a
Q25: Aquatic NPP is primarily limited by
A) fertility.
B)
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A)
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