Answer:
The Andes Mountains have affected the settlement in South America by blocking straight and easy access of the population to the western coast forcing them to settle on the northern and the eastern coasts.
Step-by-step explanation:
- The Andes Mountains stretch along the entire northern edge of the continent of South America and run roughly parallel to the coast.
- This mountain range has left the western edge of the continent not so suitable for settlement coercing the population to settle elsewhere.