Question

Explain what tectonic plates are and what controls their movements.

Answer 1

A tectonic plate is a piece of Earth’s crust. There are about 15 of them on earth. Their movement sometimes brings earthquakes or volcanoes. That’s why most earthquakes are located on the border of two plates. They move a few centimeters a year, because the inner layer of the earth, consisting of soft “liquid” rocks, are moving because the difference in temperature between the earth's core and the earth's surface.

Answer 2

Tectonic plates are also termed lithospheric plates and radioactive processes lead to their movement.

Tectonic movement implies the underneath crust pieces that are the outermost layer of the Earth. Thus, these plates are residing at the top of molten and layers of rock that formes the upper mantle.

The movement in tectonic plates is seen when the heat under the Earth's surface due to radioactive processes makes the plates move closer and away from each other.

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