Question

Which geographical process caused the Andes Mountains?

Answer 1

Earthquakes

Step-by-step explanation:

The great mountains of South America are the Andes, which follow the western border. The Andes are noted for earthquakes and volcanoes. These earthquakes and volcanoes cause the mountains to rise and the coast to sink. Mt. Aconcagua, at 23,035 feet (7,021 m), is the highest peak in the entire Western Hemisphere. Highlands include the Guiana Highlands in the north, the Brazilian Plateau in the east, and the Plateau of Patagonia in the south.

Answer 2

In a convergent plate boundary, two plates move towards one another. Due to this collision, the denser plate sinks below the less denser plate. It is marked by a subduction zone and deep-sea trench. Deep focus earthquakes originate in these regions. due to the high temperature and pressure at greater depth, partial melting takes place, as a result of which the plate melts and the magma being less dense, rises up towards the surface in the over-riding plate, forming volcanoes or chain of volcanic islands.

The San Andes Mountain also has formed in this way, by sharing a convergent plate boundary, where the denser Pacific plate (Oceanic crust) is subducting beneath the less dense South American plate (Continental plate).