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When the water in a river wares down the rock under it it forms a gap to an area where there isn't useally water this can happen in small streams or in huge rivers. Cliffs are also a main part of this when the water drops over it forming a waterfall.

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Waterfalls are typically formed when a river flows over different layers of rock, with softer rock eroding faster than harder rock. This differential erosion creates a drop in the river's elevation, resulting in a waterfall. Other factors such as tectonic activity or glacial movements can also contribute to the formation of waterfalls.

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11mo ago
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Q: What causes waterfalls?
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