The air parcel expands as it rises and this expansion, or work, causes the temperature of the air parcel to decrease. As the parcel rises, its humidity increases until it reaches 100%. When this occurs, cloud droplets begin forming as the excess water vapor condenses on the largest aerosol particles.

The higher the temperature, the more water vapor a volume of air is capable of holding. As air warms, its capacity for holding water vapor increases; as it cools, the capacity decreases. The maximum water vapor capacity of a volume increase at an increasing rate as temperature increases.

The increase in temperature happens because the parcel is being compressed by increasing air pressure as it moves downward. If there is liquid water in the parcel (cloud droplets or raindrops), the liquid will evaporate because as the parcel warms its capacity for water vapor increases.

As a rising parcel cools, its relative humidity increases. Once the relative humidity reaches 100% (determined when the parcel temperature cools down to its original dew point temperature), further lifting (and cooling) results in net condensation, forming a cloud.

Meteorology

Living organisms need water to survive. All oxygen-dependent organisms need water to aid in the respiration process. Some organisms, such as fish, can only breathe in water. Other organisms require water to break down food molecules or generate energy during the respiration process.

Our bodies use water in all the cells, organs, and tissues, to help regulate body temperature and maintain other bodily functions. Because our bodies lose water through breathing, sweating, and digestion, it’s crucial to rehydrate and replace water by drinking fluids and eating foods that contain water.

A tap is nickname for faucet because it connects to water line so people began saying tap water. Another name might be spigot. I think tap water sounds better than spigot water. Because tap is the mechanism that dispenses water connected to the municipal water system.

Chlorine is deliberately added to the US water supply to kill germs and pathogens, but when it mixes with other organic compounds it can create a few harmful byproducts. One of these byproducts, a group of chemicals known as trihalomethanes (THMs), has been linked to kidney problems and increased cancer risk.

United States. Faucet is the most common term in the US, similar in use to “tap” in British English, e.g. “water faucet.” Spigot is used by professionals in the trade (such as plumbers), and typically refers to an outdoor fixture.

Potable water is not pure water because it almost always contains dissolved impurities. For water to be potable, it must have sufficiently low levels of dissolved salts and microbes . This is because: microbes can cause illnesses.