Question

Explain Tectonic plate theory and its working.​

Answer 1

The outermost part of Earth's structure is known as the lithosphere.

The lithosphere consists of the crust and small portion of the upper mantle.

The lithosphere is divided into a number of tectonic plates.

These plates move and interact with one another, driven by convectional forces within the Earth.

When the plates move they collide or spread apart allowing the very hot molten material called lava to escape from the mantle. When collisions occur they produce mountains, deep underwater valleys called trenches, and volcanoes. .The Earth is producing "new" crust where two plates are diverging or spreading apart.

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