What process that brings heat from the lower mantle toward the crust?

Question

1. conduction
2. cementation
3. compression
4. convection

Answer 1

The process that brings heat from the lower mantle toward the crust is 4. convection.

Convection involves the movement of heat through fluids (which include liquids and gases) where hotter, less dense material rises, while cooler, denser material sinks. This process plays a significant role in the transfer of heat from the Earth's mantle to the crust.