Which of the following statements regarding dams is/are correct?
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Dams help in irrigation by storing and regulating river water.
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Dams are used for generating hydroelectric power.
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Large dams can lead to the displacement of local communities.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 1, 2 and 3.
All three statements accurately describe the functions and impacts of dams. First, dams store and regulate river water, ensuring a steady supply for irrigation, especially during dry seasons. Second, many dams house hydroelectric power stations, using the force of stored water to generate clean electricity. Third, large dams often require vast land areas, leading to the displacement of local communities, including tribal groups, due to submergence of villages and farmland. Thus, all statements correctly explain the benefits and social implications of dams.