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Which sentence provides evidence that heat travels from Earth’s mantle up to its crust?
A.
Earth’s atmosphere is warmer during the day than at night.
B.
Earth’s outer surface is cooler than its interior layers.
C.
Rocks and other objects on Earth’s surface heat up quickly in the afternoon sun.
D.
The core of Earth is solid, but the layer just beneath Earth's crust is molten.

Answer :

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.

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