By :- sumit kr. As we know that there is a big and important place of questions related to general knowledge in competition exams. So this post is also about to one of these topics our today's topic is dams of India. •what is Dam? A wall build across a river to hold back the water and form lake behind it known as Dam. •what is the main aim behind building a dam? Dams are built for more than one purpose like:-. •Fishing •to generate hydroelectricity •water supply for irrigation •flood control •fulfill the need of water for drinking. •providing open water for navigation e.t.c...... some disadvantages of dam. •it have a harmful effect on marine life. •It resulted in displacement of local communities. •it also induced earthquake and caused waterborne diseases. •it submerged a large area of forest under water. •it leads to a great soil-erosion. •sometimes it also causes floods. •water logging is a
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