Is the water on the shore renewing itself or is it more or less the same?
In: Physics
Well yes but actually no, some of it is renewed the other part isn’t. That’s because some is absorbed by the sand and there’s a whole cycle for that (but it’s not very important for this answer), and the other part retreats back and then hits the shore again in which part of it is absorbed while the other part isn’t.
God I’m so bad at explaining but yeah.
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