Question

What is the source of energy that drives the weathering process that results in the rounded shape of the boulder shown in the image?

Energy from Earth’s hot interior
Energy from Earth’s gravitational force
Energy from the sun
Energy from changing moon phases

Answer 1

"The Sun provides energy for surface processes such as weathering, erosion, and transport, and the Earth's internal heat provides energy for processes like subduction, melting, and metamorphism."