Tectonic plates play a significant role in shaping the Earth's landscape. The movement of these massive slabs of solid rock can cause several geological processes that can alter the Earth's surface, including:

1. Mountain building: When two tectonic plates collide, one may be pushed up over the other, forming mountains.

2. Earthquakes: The sudden movement of tectonic plates along fault lines can cause earthquakes, which can result in the formation of geological features such as valleys and canyons.

3. Volcanic activity: Volcanoes are often formed when magma rises to the Earth's surface through weak spots in tectonic plates.

4. Sea floor spreading: The movement of tectonic plates can cause the ocean floor to spread apart, creating new oceanic crust and widening the ocean basins.

These processes can shape the Earth's surface over millions of years and continue to influence it today.
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