Eli5- How does the source of a river not run out of water?

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How does a rivers source constantly have water.

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Anonymous 0 Comments

There are plenty of reasonable answers, but I think there is one thing missing. It looks like you have a misunderstanding of what “source of a river” is. It’s not like faucet that just sprays all the water that goes down the river and ends up in the ocean. It’s usually the highest/furthest visible point to which you can reliably trace back the river.

And this specific source can definitely sometimes run out of water! But that’s the thing – rivers don’t have just one “source”, as per a point that supplies water – they collect water from many different “sources” on their way down. It may be rainfall dripping from nearby cliffs, maybe some ice melting and going down hills, it may be another river joining the main river, it may be flowing through the lake that has 5 rivers flowing in…

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