Question

the gulf of mexico/gulf of america receives pollutants from which major river?
colorado
hudson
mississippi
snake

Explanation:

The Mississippi River drains a large portion of the central United States and empties into the Gulf of Mexico, carrying various pollutants with it. The Colorado River flows into the Gulf of California, the Hudson River empties into the Atlantic Ocean near New York, and the Snake River is a tributary of the Columbia River which flows into the Pacific Ocean.

Answer:

C. Mississippi