Which best explains mantle convection?(1 point)

Question

Responses

Warmer and cooler material in the mantle move up.
Warmer and cooler material in the mantle move up.

Warmer and cooler material in the mantle move down.
Warmer and cooler material in the mantle move down.

Warmer material in the mantle moves down, and cooler material in the mantle moves up.
Warmer material in the mantle moves down, and cooler material in the mantle moves up.

Cooler material in the mantle moves down, and warmer material in the mantle moves up.

Answer 1

The best explanation for mantle convection is:

Cooler material in the mantle moves down, and warmer material in the mantle moves up.

This describes the process where heat causes material in the mantle to rise when it is warm and to sink when it is cooler, creating a convection cycle.