Water As A Resource
Water As A Resource
Water constitutes about 75% of the earth’s surface, and is present in oceans, rivers, Iakes, ponds, etc. It is also an important constituent of the atmosphere and living matter, there is water under the ground, and this is known as groundwater. The total body of water on the surface of the earth is called the hydrosphere. Water is a valuable natural resource. It is the most abundant substance on the earth it is an inexhaustible natural resource. Water is indispensable for life processes. We drink water, use water to cleanse ourselves, prepare food, grow crops, etc. Water is used in many industrial processes. It has been estimated that the water reserve in the river systems of our country about 1,869 cubic kilometer whereas the groundwater reserve is about 432 cubic kilometer.
Sources of water
Rain is one of the main source of fresh water. Some of the rain water that falls on the land surface may flow into rivers, streams or oceans. This is called runoff water. The runoff water either flows into the rivers or get stored into the lakes to form a fresh water source.
Surface water : After rainfall, water gets collected in the low- lying areas to form pond and lakes. In hilly regions, the runoff water falls from higher areas to form rivers that flows into valleys. The river further flow to seas or oceans. All these water sources from the surface water of the earth.
Underground water : During the summer season or in case of failure of rainfall, people depends on the water from underground sources for domestic and agricultural purposes.
Rain water get collected in the soil by seeping into the gravel and rocks at the bottom. The excess amount of water moves deeper into the ground and fills the spaces in the rocks. This is known as ground water. The level of ground water is known as water table.
The water that is fit for use and very difficult to get is called __________________ | |||
| Right Option : A | |||
| View Explanation | |||
Rain in India largely occurs during the _____________________ . | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct ? (a) Rain is a very important source of water. (b) The high yielding varieties of crops require much amount of water for irrigation. (c) Himachal Pradesh had evolved a local system of canal irrigation called Kulhs over four hundred years ago. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
