Question

If convection cells in the asthenosphere are the mechanism behind plate tectonic movement, what powers the convection cells?

a) energy from the sun
b) energy from the earth's core
c) air pressure changes
d) energy from magma
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Answer 1

I think the answer will be C

Answer 2

The energy that powers the convection cells is ENERGY from the earth's core (Option B).

• Convection currents, also known as convection cells, are caused by density differences within a body of liquid or gas.

• Convection cells inside of the Earth form as material near the Earth's core heats up.

• The asthenosphere refers to the upper mantle layer beneath the lithospheric mantle which is involved in plate tectonic movement.

• The heat inside the Earth's core heats the asthenosphere, which is associated with the movement or 'motion' of convection cells.

In conclusion, the energy that powers the convection cells is ENERGY from the earth's core (Option B is correct).

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