Final answer:
Tectonic plates are large pieces of the Earth's lithosphere that move slowly over the layer of Earth's mantle, and they can crush together to create mountains.
Step-by-step explanation:
Tectonic plates are large pieces of the Earth's lithosphere that move slowly over the layer of Earth's mantle. The movement of tectonic plates can create various geological features, such as mountains. These plates number in the hundreds and can collide with each other, causing them to crush together and form mountain ranges.
Learn more about Tectonic plates