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The thickness of the 2 layers of the upper mantle is approximately said to be ________

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The thickness of the 2 layers of the upper mantle is approximately said to be ________

(a) 400 and 600 km

(b) 300 and 500 km

(c) 450 and 800 km

(d) 300 and 400 km

I had been asked this question in a job interview.

My question is based upon The Mantle, The Core in portion Internal Structure of the Earth of Engineering Geology

1 Answer

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The correct answer is (a) 400 and 600 km

Explanation: The upper mantle is further divided into two layers of 400 and 600 km thickness respectively.

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