10. What river empties into the Gulf of Mexico?

Mississippi River

Explanation:A number of rivers empty into the gulf, most notably the Mississippi River and Rio Grande in the northern gulf, and the Grijalva and Usumacinta rivers in the southern gulf.

I got it!

Explanation:

The Mississippi River

A number of rivers empty into the gulf, most notably the Mississippi River and Rio Grande in the northern gulf, and the Grijalva and Usumacinta rivers in the southern gulf.

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism