1. By how much did the U. S. increase its territory as a result of the Treaty of Guadalupe-Hildalgo after the Mexican American War?
A. less than one quarter
C. exactly one half
B, more than one third
D. Two thirds
more than two thirds

D

Explanation: If you look at maps of The United States at the end of the war compared to before the war, America wasn't very impressive. After, however, America gained lands such as California, Texas, Washington, Oregon, Nevada, New Mexico, and more. The United States was looked at as a very large country, even more than they were.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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