As the saying goes: "People live high, but water flows low", and the reason why water flows low in this sentence is because _ _ _ _ _; A rapidly rising balloon

Water always flows from high to low, because water is affected by gravity, and the direction of gravity is always vertical downward, so gravity changes the direction of water flow;

Everything around the earth is affected by gravity, and the direction of gravity is always vertical downward, so objects in the air will eventually fall back to the ground, and the balloon that rises rapidly is also affected by gravity.

So the answer is: by gravity; Yes