I think d if you still need the answer
The Rio Grand River does NOT serve as a physical divider between Mexico and Canada. Instead it serves as part of the border between Mexico and the United States. The Rio Grande and the Rio Bravo del Norte are two different names for the same river TRUE.
Answer:
C) agriculture was an important part of the economy
Explanation:
The early Indus River Valley and the early Chinese (Shang) civilizations were similar because they were located near a river and as a result of this, the surrounding areas were rich in nutrients which made it easier for agriculture to develop into an important part of the economy.