GEOLOGY

Detailed explanation-1: -In plate tectonics, Earth’s outermost layer, or lithosphere-made up of the crust and upper mantle-is broken into large rocky plates. These plates lie on top of a partially molten layer of rock called the asthenosphere.

Detailed explanation-2: -The pieces that the lithosphere is divided into are called lithospheric plates or tectonic plates.

Detailed explanation-3: -A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.

Detailed explanation-4: -The heat from the mantle makes the rocks at the bottom of lithosphere slightly soft. This causes the plates to move. The movement of these plates is known as plate tectonics. So, the above information shows that Lithosphere is divided into a number of huge slabs of rock, called tectonic plates.