Answer:
Theory of tectonic plates describes the motion of the earth's crust.
Step-by-step explanation:
The theory of the tectonics plates refers to the motion of the plate in the large scale which makes up the the lithosphere of the earth's surface. The processes of tectonics on the earth started around 3.3 billion years ago to 3.5 billion years ago.
The model of the tectonic plates theory is based on the continental drift.
The earth's surface is made up of tectonic plates. These tectonic plates moved and caused the eruption of volcanoes and causes earthquakes.