10 facts about plate tectonics

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Explanation:

- Tectonic plates are composed of oceanic lithosphere

- each is topped by its own kind of crust.

- Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere.

-Plate motions range up to a typical 10–40 mm/year (Mid-Atlantic Ridge; about as fast as fingernails grow), to about 160 mm/year (Nazca Plate; about as fast as hair grows).

-Where the plates meet, their relative motion determines the type of boundary: convergent, divergent, or transform.

- Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries.

- Plate boundaries are commonly associated with geological events such as earthquakes and the creation of topographic features such as mountains, volcanoes, mid-ocean ridges, and oceanic trenches

- The majority of the world's active volcanoes occur along plate boundaries, with the Pacific Plate's Ring of Fire being the most active and widely known today.

-Three types of plate boundaries exist, with a fourth, mixed type, characterized by the way the plates move relative to each other. They are associated with different types of surface phenomena.

- Plate tectonics is the theory explaining the movement of the earth's plates and the processes that occur at their boundaries.

the effect is, the moon appears to change shape overtime

explanation: