How does a waterfall keep dumping such volume of water to a lower place without stopping?
In: Physics
Rain and/or snowmelt from upriver is feeding it. The large rivers of the world drain *enormous* amounts of land. Niagra Falls is draining much of Canada towards the ocean.
It may not be raining near the waterfall right now, but there’s rain or snow *somewhere* almost all the time.
That said, many rivers do run shallower in dryer seasons – or even stop entirely during droughts.
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