The picture shows how the Grand Canyon looks now. But millions of years ago, this region was completely buried under Earth’s surface. The change that happened over the years was caused by [BLANK].
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The picture shows how the Grand Canyon looks now. But millions of years ago, this region was completely buried under Earth’s surface. Colorado river was flowing through the area where the grand canyon is now present. It dates back to 5 to 6 million years ago. There were several sediment which is formed and the river in due changed its course. Thus a deep ridge was formed which is now termed as the grand canyon.
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The changes that took place over millions of years is known as weathering.
Explanation:
- weathering is a phenomenon by virtue of which there are broken down rocks that these integrate over time and flow to a distant place due to water or wind
- as a result of this there is breakdown of rocks and therefore new structure. The grand canyon is one of such structure which was below the surface of the earth but has got outside the surface due to widespread weathering for the last million years
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