I think the answer is Salinization
Salutations!
What river forms a large portion of the border between the United states and Mexico?
The Rio Grande River forms a large portion of the border between the United States and Mexico. The Rio Grande River is a global river that separates Mexico and the United States. It starts from Colorado, and then dribbles till Gulf of Mexico.
Hope I helped :D
Explanation:
There are two plate tectonics. The the arrows that are going outwards show that there are one on each arrow because, the line splits them in half and it said that it split them in half in the directions.
Answer:
can you send a picture of this question, because I can't read all the answers.