Water is a colorless and odorless substance found all over the earth.water is made up of billions of molecules……..water on our planet flows as liquid in river,steams and oceans ,.is solid as ice at the north and south poles .and is gas (vapor )in the atmosphere .water is also underground and inside plants and animals. Water is very very important for every .Because without water we cannot survive. Everyone wants water.
Importance of water.,water carries nutrients to all cellS in our body and oxygen to our brain .water allows the body to absorb and assimilate minerals, vitamins, amino acid .glucose and other substances .water flushes out toxins and waste.water helps to regulate body temperature.
Water,a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous ,liquid, and solid states .it is one of the most plentiful and essential compounds .A testless and odourless liquid at room temperature. It has the important ability to dissolve many other substances .
68.7% of the fresh water on earth is trapped in glaciers .30% of fresh water is in the ground.1.7% of the world’s water is frozen and there fore unusable .approximately 400 billion gallons of water are used in the United state per day ……….nearly one-half of the water used by Americans is used for thermoelectric power generation.
The world water resources
Water resources are natural resources of water.that are potentially useful. Uses of water include agriculture, industrial, household, recreational and environmental activities .all living things require water to grow and reproduce .
97%of water on the earth is salt water and only 3% is fresh water. Slightly over two third of this is frozen in glicers and polar ice caps .this remaining unfrozen fresh water is found mainly as ground water ,with only a small fraction percent above ground or in the air
The world water
there’s a whole lot of water on Earth!something like (326 million trillion gallons )found in our earth
water is one of the most important substances on earth.All plant and animals must have water to survive. If there was no water .there would be no life on earth.