Essay on water the essential commodity for class 7
Answers
Water is one such substance without which we cannot imagine our life. Besides, quenching our thirst, this transparent chemical substance is used for several other purposes. It is used to accomplish several household tasks. Water is also used for agricultural purpose and is needed for industrial use. Here is a brief look at how it is used at different places.
Agricultural Use
It accounts for around 70% of the water used around the world. In agriculture, water is mainly used for the purpose of irrigation. In addition to this, it is also used for the raring of the livestock. Most of the water used for irrigation is extracted from rivers. Groundwater is also used for this purpose.
Rivers are thus said to be of great importance for the farmers. Not only do they provide water for irrigation but they also play a vital part in the water cycle.
Industrial Use
Industrial use of water includes water used for the purpose of washing, diluting, cooling, transporting, fabricating, manufacturing and processing of various products. Thermal power plants, engineering and pulp and paper industries are among the one that consume the maximum amount of water.
Domestic Use
At home water is used for many purposes. This mainly includes drinking, cooking, bathing, washing utensils, washing clothes, cleaning houses, cars and other vehicles, watering plants and for the purpose of sanitation.
Each country has its own system of water supply to ensure water reaches every household so that the aforementioned basic needs of its citizens are met. While water is used as it is for cleaning, washing and bathing purpose, it needs to be purified before drinking as well as prior to using it for the purpose of cooking.
Conclusion
Water is vital for the survival of the mankind. However, unfortunately it is being wasted at a rapid speed around the world. Everyone should contribute his/her bit towards saving water.
WATER ESSAY 3 (400 WORDS)
Water is derived from various sources. Rivers, lakes, seas, oceans and rain are known to be some of the main sources of water. This free flowing and readily available colourless, odourless substance is needed for domestic, agricultural as well as industrial use.
Sources of Water
The sources of water are mainly divided into two categories – Surface Water and Ground Water. Rain water pours and collects on earth in the form of surface water as well as ground water. Here is a brief look at both these sources of water:
Surface Water: It is found in rivers, lakes, reservoirs, streams, seas and other such sources. The water in lakes and rivers comes from rain and the melting of snow. The river water flows into the sea.
Ground Water: It is found under the land. Water travels under the surface of the land by way of soil on the non-porous rocks and fills the opening in these rocks. The rocks that store and send out groundwater are known as aquifers. At times, the water stored in these rocks bursts in the form of springs due to high pressure. Ground water is also extracted by digging wells and tube wells.
Water Available for Human Use
Our planet is rich in water with around three-fourth of its surface being covered with water. However, only a small part (just about 2.7%) of the total resources of water is available for the human use.
Around 97.3% of water on earth forms a part of the oceans. It is salty and cannot be used for the purpose of irrigation or any other agricultural use. It is not even good for industrial or domestic use. Out of the 2.7% fresh water available on earth, the inland surface water that is the water available from sources such as rivers, lakes and ponds accounts for just about 0.02%. This water is crucial for the growth and survival of all forms of terrestrial and freshwater aquatic beings.
It is thus important to use it wisely. This point is emphasized time and again. However, its criticality is not yet recognized by the people. It is essential to understand the importance of saving water else we will have to learn it the hard way.
Water is most essential commodity for human consumption and is one of the most important renewable resources, have a significant role in determining the portability of drinking water. Water is the elixir for life. Adequate supply of potable safe water is absolutely essential and is the basic need for all human being on the earth. The quality of water may be described according to their Physical- chemical characteristics. For effective maintenance of water quality through appropriate control measures, continuous monitoring of large number of quality parameters is essential. Water is nature’s most wonderful, abundant and useful compound and it is the basis of all lives–ecological resources for the flora and fauna of our earth and a fundamental necessity for all lives. Without a properly functioning water supply, it is difficult to imagine productive human activity. Without a properly functioning water supply, it is difficult to imagine productive human activity, be it agriculture or forestry, livestock, farming or fisheries, trade or industry The quality of water is of upper most importance compared to quantity in any water supply planning and especially for drinking purposes purity is equally important .
It is water who plays a pivotal role in regulating life-cycle of mankind.
cSAVE WATER IT IS PRECIOUS.
HOPE IT WILL HELP YOU PLEASE MARK AS BRAINLIEST
earth’s surface & this is deteriorating due to anthropogenic activities, so in future even countries
are go in to suffer from scarcity of pure water. As we dump municipal wastes and industrial
waste, heavy land and salt making properties of ground water change.