How can we save water? Availability of water on earth.

How can we save water? Availability of water on earth.

How can we save water? Availability of the water in the world.

Availability of water on the earth

Availability of water
Almost 70% of the earth is covered with water. Yet, about 97% of water available on the earth is in the oceans and seas. This is salt water and is unfit for human consumption. Only about 3% is Freshwater, of which more than 2% is found in the ice caps and glaciers of the Polar Regions. This can’t be accessed by us. Less than 1% of water is present in the rivers, lakes, and ponds. This is potable water available for living things to use. Without water many parts of the world will be affected by famine.

Don't waste water

How can we save water?

Water is a precious natural resource. It should be saved some of the ways to save water are:

•Check all taps, pipes and toilets for leaks.
•Close taps while brushing teeth.
•Water your garden or plants early in the morning or late in evening. Do not water them on rainy days.
•Cover water tanks and swimming pools to reduce evaporation.
•Use drip irrigation system in farms.
•Reuse waste water wherever possible.
•Rain is a good source of freshwater. It can be used for watering the garden, washing, cleaning and so on. So, rainwater must be stored .this is called rainwater harvesting.

Impurities in water

Water that we get is not pure. It contains many impurities.
Impurities can be soluble or insoluble. When impurities dissolve completely in water, they are said to be soluble impurities.
Impurities that do not dissolve completely in water are said to be insoluble Impurities .impure water also contains disease-causing germs.
Drinking impure water can make us sick.
Therefore, impurities must be removed from water to make it drinkable. Boiling is the safest method of water purification.