Which of the Following Statements About Ocean Productivity Is True

question 28

Multiple Choice

Which of the following statements about ocean productivity is true?

• A)Productivity decreases in upwelling zones because the colder temperatures of the waters slow the process of photosynthesis.
• B)Ocean productivity is highest in the aphotic zone.
• C)Sunlight and the availability of nutrients are two factors that regulate ocean productivity.
• D)Limestone calcium carbonate)is the source of carbon that enters the marine food web.

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