Question

What happens when heat in the mantle circulates

Answer 1

Answer: At the mantle-crust boundary. While conduction seems the more obvious method for heat transfer, convection also occurs in the mantle. The warmer, less dense rock material near the core slowly moves upward. Relatively cooler rock from higher in the mantle slowly sinks toward the mantle

Step-by-step explanation:

Answer 2

Answer: It allows the solid rock of the mantle to stay circulating without anything flowing out or oozing out. Hope that helps!