Question

Earth’s mantle is a. a layer of molten metal. b. a layer of hot rock. c. a dense ball of solid metal. d. a layer of rock that forms Earth’s outer skin.

Answer 1

B. A layer of hot rock

Answer 2

Earth’s mantle is a layer of molten metal.

Option (a).

Explanation:

• Earth consists of the crust, core, and mantle. Crust is the 'outermost layer of the Earth'.

• Mantle is a hard layer of rock which is present in between the crust and the core. The rock layer is that silicate.

• The mantle is by origin in the solid form but in the geological timeframe, it behaves somewhat like a viscous fluid.

• It consist of a oxygen, silicon, and magnesium.

• There are traces of other metals as well.

• Together all of them form the silicate rock which is the Earth’s mantle.

• When heat is applied to the Molten metal it changes from the solid to liquid phase. Like lava is molten rock.

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