Mechanism Of Plate Movements

Question 1

the transfer of thermal energy by the movement of heated matter

Answer 1

Convection

Question 2

The mantle is heated from the core, where it rises upward in hotter areas and sinks in cooler areas.

The convection cells are created in the mantle, which eventually produces the horizontal motion of the mantle material close to the surface of the Earth.

Answer 2

Convection Current in the Mantle

Question 3

What causes convection current?

Answer 3

● difference in temperatures from the bottom to the top of the mantle.
● Intense heat in the mantle leads to convection currents which drive the movements of the plates.
● Many scientists hypothesized that convection currents are probably set in motion by subducting plates, which cause plates to move.

Question 4

It is the process wherein the cold crust material (lithosphere) sinks into the mantle and
stirs its entirety causing motion on the surface. The mantle is heated and rises toward the crust. The rocks near the surface are cooler and sink back down toward the core. This forms the same type of convection current that causes plates to move and rise toward the crust.

● The unequal distribution of heat within Earth causes thermal convection in the mantle that ultimately drives plate motion.

Answer 4

Mantle Thermal Convection