water in life
Water is one of the important and necessary elements for the life of living organisms on Earth, as it constitutes 80% of the weight of all living things, and covers 70% of the area of the globe. It is a chemical compound and consists of one atom of oxygen and two atoms of hydrogen, and it spreads in all its various forms, solid, liquid and gaseous. It is tasteless, colorless (transparent), and odorless.
Uses of water in life
- Maintaining the earth’s temperature.
- Helping people with digestion, treating constipation and stress, transporting oxygen between blood and cells, and removing excess salt from the body.
- a means of transportation; Many peoples depend on water for transportation by ships and boats.
- growing food crops; As agricultural crops need irrigation to grow well and soundly.
- It is used in some industries in order to generate electricity to operate machinery, and to manufacture materials.
- Watering vegetable and flower gardens and lawns, as well as filling swimming pools and washing cars.
- Fill public fountains located inside restaurants, hospitals and schools, clean streets, and put out fires.
- electric power generation; Where the power plants are the largest consumer of water.
- Air cooled and hot metals.
- entertainment; ie swimming, kayaking, and windsurfing.
- home chores such as:
- Showering: Needs between 30 and 40 gallons per day.
- Washing machines: Needs about 25 gallons.
- Toilet: 5 gallons per person.
- Kitchen: Needs 20 gallons per day, used for washing dishes and preparing food.
- Other uses: Washing hands, brushing teeth, shaving 15 gallons a day.
- It spreads in solid, liquid and gaseous states.
- The volume of water increases, and its density decreases when it freezes.
- It takes a spherical shape in the air.
- Holds light metallic objects.
- the ability to dissolve some substances; As it dissolves a large number of materials.
- Interaction with different chemicals.
Water conservation methods
- Rationalization by Individuals:
- Rationalization by the state and government:
- Rationalizing it in the agricultural sector through:
- Install all parts that help save water.
- Take advantage of the water washing vegetables and fruits to water the agriculture and the garden.
- Open the water outlet or tap only when needed.
- Construction of reservoirs and dams that store excess water.
- Awareness of the importance of water conservation.
- Finding different alternative sources of water, such as desalination of sea water and sewage treatment.
- Watering in the early morning or at dusk.
- Not using old irrigation methods, especially the immersion method, and using modern methods, especially the drip irrigation method.
Uses of water in life