Water is a chemical substance with the chemical formula H2O. Its molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state, water vapor or steam. We all need water to live, so take a moment and think about it how valuable it is.
The human body consists of more than 70% water!!! If you are thirsty the photos. Have a nice weekend.