Lithosphere (noun)

In geology, the lithosphere refers to the solid outer layer of the Earth consisting of the Earth's crust and the uppermost layer of the mantle.

Origin:

The word 'lithosphere' is derived from the greek words 'lithos' meaning 'stone' and 'sphaira' meaning 'sphere'.

Examples:

1. The lithosphere is divided into a number of tectonic plates that are constantly moving and interact with one another.
2. Volcanic eruptions and earthquakes are caused by the movement of the tectonic plates within the lithosphere.
3. The lithosphere is relatively thin compared to the Earth's mantle and core.
4. The lithosphere is broken into a number of pieces that are called tectonic plates, and these plates are in constant motion.
5. The lithosphere is the hard, outer layer of the Earth that includes the continents and the ocean floor.