Question

Earth's mantle is made of liquid molten material. The inner part of the mantle is hotter than the outer part. Therefore, currents carry molten material up to Earth's surface. Then, they cool off so much that they sink back down inot the warmer area. What type of heat transfer is this? [ Select ]

Answer 1

Convection currents are what cause the warmer molten material to rise up, and when it cools, to sink back down.

Step-by-step explanation: