Question

Materials in the mantle move via convection currents. Which of the following explains how a convection current is generated?
A. The mantle is squeezed between the crust and the core. The heat generated from this enables convection currents to flow.
B. Tectonic plates are moving. As they move, they produce friction which creates heat. This heat pushes the flow of convection currents.
C. The core of the earth is much hotter than the mantle. The heat from the core flows towards the mantle fueling the convection currents.
D. Heat from the sun is absorbed by the Earth's internal layers. This constant flow of heat from the sun triggers the movement of mantle materials​

Answer 1

Answer:

b one is the answer boiii

Answer 2

• Heat transfer is a function of temperature difference.
• It moves from areas of high temperature to regions of lower temperature.
• A convection current is a way of heat transfer.
• The Earth's molten outer core is from where the heat in the mantle comes.
• The upper boundaries and lower boundaries of the mantle have temperature differences that require heat transfer to occur.
• Thus, convection also occurs in the mantle.

Hence, the correct option of the question is (C) The core of the Earth is much hotter than the mantle. The heat from the core flows towards the mantle fueling the convection currents.