Question
[110]. Passage: Himalayan glaciers feed rivers on which millions depend, yet they are retreating in most monitored basins. Warming shortens snowfall seasons, dark dust and soot accelerate melting, and new lakes form behind unstable moraines that can burst without warning. The danger is not a single flood but a changing regime: less reliable dry-season flow, more sudden hazards, and greater uncertainty for farming and hydropower. Adaptation requires local monitoring, early warning for glacial lakes, and water-sharing arrangements that can cope with variability rather than assuming a fixed average flow. What is the main idea of the passage?
Option 4 : Glacier retreat creates both unreliable water supply and new hazards, requiring monitoring, early warning and flexible water-sharing.
Detailed Solution
सही उत्तर Glacier retreat creates both unreliable water supply and new hazards, requiring monitoring, early warning and flexible water-sharing. है।
The main idea summarises the passage's overall argument and recommendation.
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prepsnap.in • Mock TestQuestion:
[110]. Passage: Himalayan glaciers feed rivers on which millions depend, yet they are retreating in most monitored basins. Warming shortens snowfall seasons, dark dust and soot accelerate melting, and new lakes form behind unstable moraines that can burst without warning. The danger is not a single flood but a changing regime: less reliable dry-season flow, more sudden hazards, and greater uncertainty for farming and hydropower. Adaptation requires local monitoring, early warning for glacial lakes, and water-sharing arrangements that can cope with variability rather than assuming a fixed average flow. What is the main idea of the passage?
Correct Answer: Glacier retreat creates both unreliable water supply and new hazards, requiring monitoring, early warning and flexible water-sharing.
The main idea summarises the passage's overall argument and recommendation.