Respuesta :
the process in question is called erosion. It happens when water and other natural things like wind cause this to happen.
Answer:
erosion
Explanation:
- The erosion is process by which the river acts as a tool to cut between the lands and it creates a landscape that are formed by the millions of years.
- The Colorado rover is one of such river system that has developed and formed the great grand canyons in the state of Arizona and is a masterpiece of the works of rover processes.