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sasho [114]
4 years ago
12

How I can/to answer it?

Chemistry
1 answer:
ankoles [38]4 years ago
4 0
The water and soil particles in the water rub against the rocks and take away little crumbs of the rock. The longer it lasts, the smoother. Same with rivers. Old rivers are deeper and lay deeper in the environment. Look at the Grand Canyon.
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