Question

HOT how is dam called as multipurpose project and what are it advantages and disadvantages ?

Answer 1

yes dam is called as multipurpose project because of following advantages :-
  - it helps to generate electricity , and for the purpose of irrigation 
  -  it is suitable for pisciculture and performs great role that leads to conservation of soil from huge distruction created by floods .
  - it also attracts as a tourist place due to the development of natural scenery .
  - it leads and promotes the water recreation and commands the navigation .

disadvantages :-
  - it became the cause earth quake 
  - it became the cause of water born disease 
  - it creates inter state dispute 
  - it poses the challenge of migration 
  - it also effects the ecosystem 
  - also cause deforestation and flood ( if dam get damaged or busted ) .

Answer 2

Answer:

Dams are artificial walls or barriers build by man to restrict the flow of running water and form a huge lake or water reserviour. They are called multipurpose because once they are build they serve several purposes. The advantages and disadvantages of dams are indicated below.

Advantages:

1. They provide water for domestic, industry and irrigation purposes.
2. We get hydroelectric power from dams.
3. Dams can be used as waterways.
4. They can be used for rearing fish for human consumption.
5. Dams are used as roadways to cross rivers and save expenditures of building bridges.
6. During heavy rainfall or excess water flow, dams store water then release water during times of low natural water flow are and meet water our water requirement. So a dam serves as a means of flood control.

Disadvantages:

1. They are extremely expensive to build.
2. The must be build according a very high standard of construction.
3. Dams flood large areas of land and submerge natural vegetations.
4. Fertile gricultural land are submerged under the water of dams.
5. People living around the dam location must be shifted and relocated.
6. Dams can cause earthquakes and landslides.