In mantle convection currents, hotter rock moves while cooler rock moves a. downward; sideways b. downward; upward c. upward; downward d. sideways; upward

C. Upward; downward. As the hot rock rises, cooler rock flows downward to take its place next to the core, where it is heated and becomes buoyant enough to rise again later

In mantle convection currents, hotter rocks move ___upward___, while cooler rocks move downward

Explanation:

your answer would be a, maximum exploitation of resources.