Many uses from the water, mainly is drinking. More than seventy percent water in our body and on earth.
Sea water, Rain water, river water, lake water and ground water, these are the different waters.
Crops depend on rains. Rain rains from clouds. Clouds are flying in the shy. Sky is in high.
River over flows Tank bund filled by rains, Happy to the all by rain. Farmer mainly, he feels very happy his well filling by rain.
Water is from the rain on the earth, changes in the climate.
Sun is heater the water, on the surface of the earth to change in to water vapour. It is condensation.
When the air is warm, it absorbs a lot of water in the form of vapour. This warm air with water vapour rises up. Since it is cold high up in the atmosphere, the air is suddenly cooled and water vapour changes to tiny droplets. These droplets cling to gather to from clouds. When clouds become too heavy with water, they rain.
This occurs when block clouds of tiny drops of water form just above or water.
When water vapour in the air condenses and appears as droplets on the ground. This is dew. We see dewdrops early in the morning on leaves, flowers etc.
Frost is very clod. The dew or surface water freezes into tiny white crystals, this is frost.
Rain water pass through a very cold region on the atmosphere, they freeze and become hail.
When water vapour is suddenly cooled, it freezes into tiny white snowflakes.
Water is precious
Savita lives in a slum. There is only one hand pump here. So people have to queue up water. Moreover, the quality of groundwater is not good. Many people have fallen ill after drinking it. Paro lives in a flat. Her house was gests fresh water supply twice a day –in the morning and in the evening. They have installed an overhead tank in which is stored. A water filter is fitted to the tap in the kitchen.
Purification of water
We get drinking water from rivers, lakes, reservoirs, etc. however, the water from these sources is not suitable for drinking. It needs to be purified before we can drink it. Water which is suitable for drinking is called potable water.
Water from rivers, lakes or reservoirs is bought through channels to the water treatment plant. Here the water is first filtered to remove the solid impurities. It is then treated with chemicals. To kill the germs present init. Purified water is then pumped into huge water tanks in each locality. Water from these tanks reaches our house though a network of pipes.
If water is purified them only do we need to have water filter at home? This is because water gets contaminated on the way as the pipes get rusted or develop leaks. Therefore people boil tap water or put chlorine tablets in it to purity it.
Some people also use water purifiers to clean drinking water.
