Although Light, Nitrogen and Phosphorous Are Abundant in the Pacific

question 66

Multiple Choice

Although light, nitrogen and phosphorous are abundant in the Pacific and Southern Oceans the plankton are less abundant due to

• A) low surface temperature.
• B) low oxygen levels at the surface.
• C) lack of iron in surface waters.
• D) low surface temperature and lack of iron in surface waters.
• E) low surface temperature, low oxygen levels at the surface and lack of iron in surface waters.

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