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8 July, 11:06

Which best describes the convection currents in Earth's mantle?

A. They transfer potential energy away from Earth's core toward its crust.

B. They transfer thermal energy away from Earth's core toward its crust.

C. They transfer chemical and thermal energy in a circular pattern.

D. They transfer chemical and potential energy in a circular pattern.

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Answers (2)
  1. 8 July, 12:04
    0
    Convection currents transfer 'thermal energy' away from Earth's core toward its crust.

    Explanation:

    Convection currents are most dominant when the 'molten rock' rises up in the form of fluids rich with thermal energy and keep exerting a pressure of the overlying layers of the crust. The movement of molten magma from the core towards the crust stimulates the 'movement of tectonic plates' giving birth to tectonic motion. The direction of flow of the convection current determines the direction of the 'movement of plates'.
  2. 8 July, 12:51
    0
    B. They transfer thermal energy away from Earth's core toward its crust.
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