It is called water vapor :)
Condensation
it is condensation
Vaporisation, or evaporation.
A cloud.
Call your city hall or local water company and complain there is air in your water pipes.
You should not have air in your pipes. Call a plumber.
it's called humidity
Rain.
When water turns into a gas and goes into the air, it is called water vapor. This process is known as evaporation.
Pollutant
A sea breeze is what we call when air flows from the water to land. Lake breeze from a lake.
The comparison of the actual amount of water vapor in the air to the amount of water vapor in the air if it were saturated is called relative humidity. It is expressed as a percentage and indicates how close the air is to being saturated with moisture.