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How is intensification of the water cycle due to global warming directly linked to extreme weather events?

Answer and explanation

Correct answer: Increased evaporation and intense precipitation increase the likelihood of severe floods and longer dry spells

Direct answer: B. Warming increases the energy available to the water cycle. Warmer surfaces generally enhance evaporation, adding more water vapour to the atmosphere. A warmer atmosphere can also hold more moisture, although actual results vary by region. When this moisture is lifted and condenses, precipitation may occur in heavier bursts, increasing flood risk, especially where drainage is poor. At the same time, faster evaporation and changes in circulation can leave some regions with longer dry intervals, increasing drought risk. A is wrong because warming does not make weather permanently calm. C is wrong because rainfall does not disappear globally; its amount, timing and distribution can change. D is wrong because the overall warming trend is not a universal increase in cold. Memory cue: a faster water cycle can mean “heavier rain and sharper dry periods,” not simply more rain everywhere.

Related tags

Global-WarmingWater-CycleExtreme-WeatherHydrological CycleThe Living WorldBiologyClass 11 Mcq

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