Purchase mobileappIcon Download our Mobile App
Call Us at 011-40705070  or  
Click to Call
Select your Board & Class
  • Select Board
  • Select Class
badges

 list three problems which arise due to construction of big dams. suggest a solution for these problems.

Asked by G Gayatri(student), on 26/2/13

Answers

badges

 There are a number of disadvantages to existing dams:

 

  • dams detract from natural settings, ruin nature 's work
  • dams have inundated the spawning grounds of fish
  • dams have inhibited the seasonal migration of fish
  • dams have endangered some species of fish
  • dams may have inundated the potential for archaeological findings
  • reservoirs can foster diseases if not properly maintained
  • reservoir water can evaporate significantly
  • some researchers believe that reservoirs can cause earthquake

the solutions to thses problems are :

small check dams should be built .. substitutes shouls be think of

Posted by Divya Janjua(student), on 26/2/13
EXPERT ANSWER

There are certain disadvantages associated with the construction of dams across rivers.

Environmental problems: The construction of dams across rivers leads to deforestation, which results in the 

loss of biodiversity. This creates a disturbance in the natural ecosystem.

Solution: To compensate the deforestation, we should plant more trees.

Social problems: The construction of dams involves the building of large reservoirs. In some cases, constructing a reservoir may result in the flooding of nearby towns and villages. A large number of people are displaced as a direct consequence of the construction of reservoirs. In such cases, the government rehabilitates the people of these areas, which in itself is a huge task.

Solution: Government should provide proper compensation to the affected people.

Economic problems: The construction of dams requires huge amounts of monetary investments. 

Solution: 

A dam becomes profitable if it is used to start generating electricity.

Posted by Vijay Yadav(MeritNation Expert), on 28/2/13

This conversation is already closed by Expert

Ask a QuestionHave a doubt? Ask our expert and get quick answers.
Show me more questions

 
Start Practising
Enter your board and class for better results:
    Start
    close