Some people can tell what time it is by looking at the sun. But I have never been able to make out the numbers. We say the cause of perfume disappearing is evaporation. Evaporation gets blamed for a lot of things people forget to put the top on. H2O is hot water and CO2 is cold water.
Water is composed of two gins.
Oxygin and hydrogin. Oxygin is pure gin. Hydrogin is gin and water. I am not sure how clouds get formed. But the clouds know how to do it, and that is the important thing.