मराठी

Explain the Factors Responsible for the Depletion of Water Table. - Science

Advertisements
Advertisements

प्रश्न

Explain the factors responsible for the depletion of water table.

उत्तर १

The factors responsible for the depletion of water table are as follows:

1)Increasing population - As a result of increasing population, all the facilities such as houses, shops, roads, offices, pavements, etc. increase to fulfil the increasing demands. This, in turn, decreases the open area for seepage of water into the ground.

2) Increasing industries - Most of the stages of manufacturing processes in industries require water. If the number of industries increases, then the water required by them will also increase. Therefore, increase of industries contributes to the depletion of water table.

3) Agricultural activities - India is an agricultural country and agriculture is impossible without water. The water for agriculture is mainly utilised from ground water, rain water and canal water. As there is no rainfall in many places, agriculture cannot be entirely depended on rain water. Also, canal water is available in a few places only. Therefore, ground water is the main source of water for agricultural activities and this causes depletion of water table.

shaalaa.com

उत्तर २

Various factors responsible for the depletion of water table are:

1) Increased population: Demand of water has been increased by the increased population. As the number of humans increase, the consumption of water also increases.

2) Increasing industries: All industries need water. As the number of human population increase, the number of industries are also increased which definitely increases the consumption of water.

3) Lack of water conservation techniques: Main source of water on earth and for the underground water is rain. The water of the rain, if conserved can increase the ground water level. But this is not done due to lack of water conservative techniques.

4) Agricultural activities: India is a country which depends on agriculture. The land used for cultivation has increased. So, the consumption of water for agriculture has increased. Irregular rainfall has increased the consumption of groundwater. This has increased the depletion of groundwater.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Water: A Precious Resource - Exercises [पृष्ठ २०३]

APPEARS IN

एनसीईआरटी Science [English] Class 7
पाठ 16 Water: A Precious Resource
Exercises | Q 5 | पृष्ठ २०३

संबंधित प्रश्‍न

"Water scarcity may be an outcome of large and growing population in India." Analyse the statement.


Analyse the impact of 'water scarcity.'


Answer the following question.
How has the ever-increasing number of industries in India made a worse position by exerting pressure on existing fresh water resources? Explain.


Arrange the following statements in the correct sequence

  1. These vapours condense to form tiny droplets of water.
  2. The water droplets come together to form large water droplets.
  3. The heat of the sun causes the evaporation of water from the surface of the earth, oceans, lakes, rivers, and other water bodies.
  4. The large water droplets become heavy and the air cannot hold them, therefore, they fall as rain.
  5. Water vapour is also continuously added to the atmosphere through transpiration from the surface of the leaves of trees.
  6. Warm air carrying clouds rises up.
  7. Higher up in the atmosphere, the air is cool.
  8. These droplets floating in the air along with the dust particles form clouds.

Analogy

Population explosion : Water scarcity :: Recycle : ______


Differentiate between surface water and ground water.


About 71% of the earth’s surface is covered with water, then why do we face scarcity of water?


Define – Scarcity of water.


What are the reasons for scarcity of water?


Analogy:

Low rainfall: Water scarcity:: Recycling Water: ______.


State whether the following statement is True or False. If false, give the correct statement.

The process of seeping water into the ground is called filtration.


From where do the following usually get water? In which form is water present in them?

Mountain tops


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×