Class 10 Biology Management of Natural Resources Water


Water is a basic necessity to all terrestrial life forms.

Human intervention also changes the availability of water in various regions.

Water availability is less because of urban waste, diversion for high water demanding crops etc.

Irrigation methods like dams, tanks, canals are used by local people to meet the minimum requirements of agriculture and daily needs.



Fig. Tank

Dams can ensure the storage of water not just for irrigation but also for generating electricity.

Canal systems leading from dams can transfer large amount of water to great distances.

For example- Indira Gandhi canal has brought greenery to large areas of Rajasthan.

Opposition to the construction of large dams-

  • Social problems because to construct dams many peasants and tribal are replaced without adequate compensation.
  • Economic problems because public spend large amount of money and do not get benefit.

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