Question

How will you relate Fig. 2 with the convection current in the mantle?

Answer 1

Answer:

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.

Explanation:

It is thought that this type of current is responsible for the movements of the plates of Earth's crust. Just like what is shown on the picture.

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Answer 2

The figure shown is similar to the convection currents in the mantle of the Earth.

What is convection?

• Convection is the upward movement of hot objects while cooler objects move downwards.
• Convection takes place under the influence of gravity.

Convection Currents in the Mantle

• In the core of the Earth, the mantle exists at very high temperatures.
• Due to convection currents, this mantle rises to the regions of lower temperature, i.e, the crust.
• Here, the mantle pushes against the tectonic plates and moves back once it cools down.

Hence, the movement of the mantle can be explained through convection.