Question

Which sentence provides evidence that heat travels from Earth’s mantle up to its crust?

Answer 1

B. Earth’s outer surface is cooler than its interior layers.

Explanation:

• The option given above is showing us that the temperature in the interior of the earth is higher than the temperature in the outer layer.
• There is travel of heat from the inner core of the earth to the earth's crust. Due to the loss of heat when it reaches the outer layer, there arises a temperature difference.
• The heat loss is due to the absorption of heat during its transfer. Hence, option B is the answer.