All BUT one is a serious consequence of water pollution to ocean ecosystems. The consequence that does not apply to ocean ecosystems is the

A) contamination of aquifers and other groundwater sources.
B) accumulation of toxic substances in the food chain, by biomagnification.
C) overgrowth and death of algae, resulting in the death of other organisms.
D) disappearance of corals, due to sediment in the water from building development.
.

I believe A. is the answer

Explanation:

I think this because it doesn't directly effect the marine life or ocean.

I hope this helps! :)

A. contamination of aquifers and other groundwater sources.

Explanation: The contamination of aquifers and other groundwater sources. While lake pollution and river pollution may affect aquifers, water pollution in the ocean usually does not. All of the other effects are consequences of a) fertilizer overuse, b) PCBs or mercury, or c) silt.