Final answer:
Tectonic plates are the plates that make up Earth's crust and their movement causes geological phenomena.
Step-by-step explanation:
The plates that make up Earth's crust are called tectonic plates. These plates are huge pieces of the Earth's lithosphere that fit together like a jigsaw puzzle and float on the semi-fluid asthenosphere layer underneath. The movement of these plates is responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountains.
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