EVERYDAY SCIENCE

SCIENCE

EARTH SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mantle
A
Thin, top layer of Earth
B
2nd layer of Earth with convection currents
C
a rock
D
Thick, totally liquid layer of Earth
Explanation: 

Detailed explanation-1: -Mantle convection describes the movement of the mantle as it transfers heat from the white-hot core to the brittle lithosphere. The mantle is heated from below, cooled from above, and its overall temperature decreases over long periods of time. All these elements contribute to mantle convection.

Detailed explanation-2: -The two layers of the Earth that are involved in forming convection currents are the mantle and the outer core.

Detailed explanation-3: -Convection currents are identified in Earth’s mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current. It is thought that this type of current is responsible for the movements of the plates of Earth’s crust.

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