12 points
10 points
*
Because they change and move over time. This river definitely didn’t start out like this and it almost certainly will look very different in just a few years’ time.
9 points
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Just recently my country exchanged land with a neighbouring country to adjust for the changes of water, each giving and gaining the same amount of land. When water marks the border it’s much easier to know when you’re crossing it.
Edit: looked it up: in march we (Austria) traded 239 m² with Liechtenstein
3 points
