This was a video we were watching in a geography class. Our topic was erosion, we were watching a man called Bill Nye who was talking about erosion. This was a video I found that I found very interesting, This video is an example of biological weathering. The coin is the tree or the plant and it is being weathered away by the water and the sand that is rubbing away the coin.
Your video doesn't work, it says "Embedding disable by request"
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