What are the two major forces capable of altering the earts relief?

Answer 1

The two major forces capable of altering the earth's relief are tectonic forces, which are responsible for the movement of Earth's lithosphere plates, leading to processes like mountain building and earthquakes; and erosion, which is the wearing away of Earth's surface through processes like wind, water, ice, and gravity, leading to the formation of valleys, canyons, and other landforms.