The ocean's biological carbon pump is driven by organisms that live in there. just like the terrestrial carbon cycle, the oceanic biological carbon pump is all about photosynthesizing, respiring, eating, producing waste products, dying and decomposing. the biological pump plays a major role in all but one of the processes involved in oceanic carbon cycling.

Option D

Explanation:

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poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

the denominator has a very specific role.