Think of the atmosphere as a really, really lazy cow. It just sits there, chewing on sunlight and heat. Eventually, it burps out water vapor. That vapor drifts, gathers, and decides it's tired of floating.
So it falls. We call this rain. Or snow, if it's being dramatic. That is your first source: direct sky delivery.
Where Does That Puddle Go?
Some rain lands on your roof. It rolls into a gutter, down a pipe, and into a storm drain. Congratulations—you just flushed a cloud.
But most of it hits the ground. And the ground is greedy. It drinks like a sponge on a bender. That soaked-up water is called groundwater. It lives in tiny cracks in rocks, like a stubborn houseguest in the basement.
