When drops become too heavy in the clouds...
When you´re thirsty...
When the snow melts...
When you want to take a shower...
Some wild animals are become rare...
When the sun warms water in rivers and oceans...
... you drink water
... the liquid is transformed into water vapor.
... because people are taking more land and using more resources.
... you turn on a faucet.
... they are released as rain or snow.
... liquid water flows.
