The major carbon reservoir in marine ecosystems is ____.
A)cell respiration
B)in marine sediments
C)volcanic eruptions
D)photosynthesis
E)ocean runoff

Question

The major carbon reservoir in marine ecosystems is ____. ​
A)cell respiration
B)in marine sediments
C)volcanic eruptions
D)photosynthesis
E)ocean runoff

Quizplus · Accepted Answer

Marine sediments contain large amounts of organic carbon, making it the major carbon reservoir in marine ecosystems. While photosynthesis and cell respiration do play a role in the carbon cycle, they are not considered major reservoirs. Volcanic eruptions release carbon into the atmosphere, but not necessarily into marine ecosystems. Ocean runoff may contain carbon, but it is not a major reservoir in comparison to marine sediments.

The Major Carbon Reservoir in Marine Ecosystems Is ____