"Fresh water" the kind that comes from the tap has additives such as Fluorides. Eye drops are basically sterile water. Water alone is irritating to the eye. Tears are composed of water and salt so the eye drops that do not hurt, contain saline.
Rain is water falling in drops from vapor condensed in the atmosphere. It is also drops of fresh water that fall as precipitation from clouds.
Water drops that fall when the temperature is below freezing and become solid are called snowflakes.
Desalination is the process to change the salt sea water into fresh water to become energy.
hail or snow :)
they fall back to Earth
pour water (fresh not salt) and wash it. makesure the person is breathing.
As in the case of all rivers which flow into seas or oceans, the Nile River mixes its fresh water with the salt water of the Mediterranean at its delta. There is no exact point at which a river ceases to be fresh water and become salt water.
Because the hydrogen molecules in water want to stay connected and once you add soap it messes with the bonds and and they don't stay bonded as strongly. Also the mass and density of the water changes when you add soap.
You become fresh and healthy, water is life itself
precipitation
because the sun ONLY evaporates FRESH water so rain drops are NOT salty.
Fresh water tastes a little better, and is not weird tasting. Water that is over 2-3 days old can become dirty and unsafe.