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3 years ago

Can someone please help me it is just really hard and im tryna get the work done before the end of the day.

Physics

1 answer:

ale4655 [162]3 years ago

7 0

C. The differences in temperature of the rocks in the mantle

Explanation:

Convection currents in the mantle is due to the differences in the temperature of the rocks in the mantle.

Convection is a form of heat transfer that occurs in fluids as a result of density differences.

The mantle is made up of molten rock
Heat from within the earth, radioactive activities and accretted heat during the formation of the earth furnishes this interior part of the earth the necessary temperature to keep it molten.
Rocks that are deeper are hotter and lighter in the mantle.
This makes them more buoyant and they rise up in the mantle.
The upper part is made up of colder molten rock that is denser.
This will then sink to replace the rising hot plume.
The exchange of the materials sets up convection cells powered by convection currents.

learn more:

Mantle brainly.com/question/7623608

#learnwithBrainly

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