Question

what are tectonic plates? ​

Answer 1

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Plate tectonics is a scientific theory describing the large-scale motion of the plates making up the Earth's lithosphere since tectonic processes began on Earth between 3.3 and 3.5 billion years ago. The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century.

Answer 2

Answer:

The theory, or idea, of plate tectonics says that Earth's outer layer is made up of large, moving pieces called plates. ... The plates are made of solid rock. Under the plates is a weaker layer of partially melted rock. The plates are constantly moving over this weaker layer.

Explanation:

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