Question

the gulf of mexico/gulf of america is most affected by which major river system?
colorado river
hudson river
missouri river
mississippi river

Explanation:

The Mississippi River flows into the Gulf of Mexico, bringing a large - volume of water, sediment, and nutrients, having a significant impact on the Gulf's ecosystem, salinity, and coastal geography. Other rivers mentioned do not have such a major impact on the Gulf.

Answer:

D. Mississippi River