Conceptual Physical Science Explorations
Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Chapter 27, Problem 10RAT
To determine

The correct option for the statement “Convection in the mantle is caused primarily by”.

Expert Solution & Answer
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Answer to Problem 10RAT

The correct option for the statement “Convection in the mantle is caused primarily by” is option (c).

Explanation of Solution

The convection is the phenomenon in which the heat is transferred from one to another place. It occurs only due to the differences in density and temperature. The difference in the density of the rocks is due to gravity.

The hot mantle rock rises and expands near the surface of the Earth due to less temperature than the mantle. The rock becomes less dense on expansion and denser on contraction.

The convection in the hot mantle occurs because the gravity pulls the denser rock downward as compared to less dense rock.

Conclusion:

Therefore, the correct option for the statement “Convection in the mantle is caused primarily by” is option (c).

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