Which pair of energy sources are among those primarily responsible for Earth's external geological processes? 

A)  energy from gravity and magnetism 
B)  energy from the sun and heat from Earth's interior 
C)  energy from the sun and magnetism 
D)  energy from the sun and gravity

Earth's Interior

The innermost layers of the Earth, including the crust, mantle, and core, each with distinct physical and chemical properties.

Geological Processes

Natural dynamics of the Earth that shape its surface and interior, including phenomena like volcanic eruptions, earthquakes, and erosion.