The Estimated Average Geothermal Gradient in the Mantle Is

question 36

Multiple Choice

The estimated average geothermal gradient in the mantle is:

• A) 10 ° C/km.
• B) 5 ° C/km.
• C) 1 ° C/km.
• D) −2 ° C/km.
• E) −5 ° C/km.

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