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Productivity Is the Amount of Carbon Fixed by Organisms Through

Question 22

Multiple Choice

Productivity is the amount of carbon fixed by organisms through the synthesis of organic matter using energy derived from ________ and ________.

A) chemosynthesis,photosynthesis
B) chemosynthesis,hydrothermal
C) photosynthesis,hydrothermal
D) hydrothermal,available nutrients
E) none of these

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