CUET Preparation Today
Which of the following is/are the negative consequences of Indira Gandhi Canal system? |
The intensive irrigation and excessive use of water has led to the emergence of soil salinity. The intensive irrigation and excessive use of water have led to the emergence of environmental problems of waterlogging. Both 1 and 2 There are no negative effects but only positive effects. |
Both 1 and 2 |
The correct answer is option 3: Both 1 and 2 Option 1: The intensive irrigation and excessive use of water has led to the emergence of soil salinity. Correct — excessive irrigation increases salt accumulation in the soil. Option 2: The intensive irrigation and excessive use of water have led to the emergence of environmental problems of waterlogging. Correct — over-irrigation raises the water table and causes waterlogging. Option 4: There are no negative effects but only positive effects. Incorrect — along with benefits, the canal system has also caused environmental problems. NCERT: "Indira Gandhi Canal (Nahar) Command Area has influenced the environmental conditions of the region both positively as well as negatively. The availability of soil moisture for a longer period of time and various afforestation and pasture development programmes under CAD have resulted in greening the land. This has also helped in reducing wind erosion and siltation of canal systems. But the intensive irrigation and excessive use of water has led to the emergence of twin environmental problems of waterlogging and soil salinity" |
