Mexico and the United States have strained border relations mainly due to the following factor:
Question 7 options:

Question

Mexico and the United States have strained border relations mainly due to the following factor:
Question 7 options:

anonymous · Answer

Mexico is the largest foreign supplier of marijuana and methamphetamine to the US market
	
Abundant rainfall in recent years along much of the Mexico-US border region has ameliorated periodically strained water-sharing relationships
	
Mexico must deal with thousands of impoverished Guatemalans and other Central Americans who cross the border looking for work
	
The US has intensified security measures to monitor and control legal and illegal transport of people and goods

swolesammy · Answer

D