What is the source of the rio grande river? a. the central plateau in mexico b. the gulf of mexico c. melting snow from the rocky mountains d. ocean swells from the atlantic ocean

C. melting snow from the Rocky Mountains

Explanation:

The Rio Grande river gets its water from the melting snow from the Rocky Mountains, in Colorado.

It is flowing towards the Gulf of Mexico, which is part of the Atlantic Ocean... so, that's its destination, not its source.  Usually rivers flow towards a lake or the ocean, it's quite rare to see a river taking its source from an ocean.

The Rio Grande river is the natural border between the United States and Mexico, it's not located anywhere near the Central Plateau of Mexico.

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