Question

How do covection currents cause movement of Earths plates?

Answer 1

Explanation and Answer: Because plated at our planet's surface move because of that fact that the very intense heat in the Earth's core, which causes molten rock in the mantle layer to move. It moves in a pattern called a 'convection' cell that forms when warm materiel rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises once again.

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Answer 2

The earth's crust is usually of two types namely the continental crust and oceanic crust. These are commonly known as the tectonic plates where oceanic crust is denser than the continental crust.

The earth's core is comprised of a large amount of iron, nickel, and other siderophile elements, and is extremely hot. This heat energy is radiated into the outer layers, as a result of which the convection currents are formed in the layer of the mantle. These currents are formed repeatedly, where the hot magma rises upwards and forces the lithospheric plates (crust) to move from one place to another. This leads to the formation of three different types of boundaries, such as-

• Divergent plate boundary

• Convergent plate boundary

• Transform plate boundary