Question

Rio Grande, a major river of North America,
forms the natural boundary between
a. USA and Mexico
b. Lake Erie and the Lake Ontario
c. Alaskan Range and the Brooks Range
d. Alaskan Plateau and Colorado Plateau​

Answer 1

Answer:a.USA and Mexico

Answer 2

Answer:

the correct answer is USA and Mexico

Explanation:

Rio Grande, fifth longest river of North America, and the 20th longest in the world, forming the border between the U.S. state of Texas and Mexico.

River mouth: Gulf of Mexico