Question

11. The _____ is the hard outer layer of the Earth about 100 km (62.14 mi) thick.
A crust
B troposphere
C atmosphere
D lithosphere

Answer 1

Answer:

A) crust

Explanation:

Answer 2

Answer:  lithosphere

Explanation:

The upper mantle and crust together form a rigid layer of rock called the Lithosphere, which is 0-100 km thick. The Lithosphere has broken into plates that float on the Asthenosphere. The Asthenosphere is 100-700 km deep.

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