Water

The Almighty said: "And we have made of water all living things, do not they believe?" [1] This verse is sufficient to demonstrate the importance of water in life, for God made water the mystery of everything living on this earth. One of the most important elements on which the planet is based, constituting 71% of the Earth's surface. It is a chemical compound composed of two atoms of hydrogen and one atom of oxygen, and it is liquid liquid, tasteless, color and odor.

Water is present in three cases: liquid in the form of oceans, rivers, seas, lakes, springs, and rain, the most common condition on the surface of the earth where the liquid state is responsible for biological processes within living organisms. Solid state in the form of snow and ice sheets. And the gaseous state such as the water vapor in the atmosphere that causes the phenomenon of convection.

The water cycle in nature

The water cycle can be defined as the continuous movement of water between the surface of the earth and the air, through which the water turns from liquid to gaseous, and then returns to the liquid state again.

Water cycle stages

Water passes through several stages, as follows: [2]

Absorption of ocean water and rivers running to the heat of the sun evaporation occurs (Evaporation).
The rise of steam into the atmosphere to condensation occurs in the form of drops forming clouds, falling in the form of rain and cold, and snow.
Some of the water is absorbed by the soil and the roots of the plants for use in their biological processes to evaporate later from the surface of the surface of the earth. The leaves are in the transpiration process.

the importance of water

Water has great importance in the life of everything on Earth, so that even living beings can live, can not dispense with water. The importance of water lies in the following aspects:

The importance of water to man