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Question

The fragmented outermost layers of earth are known as _____.

A
Crusts
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B
Plates
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C
Cores
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D
Zones
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Solution

The correct option is D Plates
Currently, geologists are working on the theory of plate tectonics. Geologically speaking, a "plate" is a large, rigid slab of rock. The theory of plate tectonics states that the earth's outermost, rigid layer, the lithosphere, is fragmented into a dozen or more irregularly shaped plates that are riding atop a hotter, more mobile material, the asthenosphere.

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