Warming melts glaciers and sea ice in the cryosphere, raises sea levels and causes floods or droughts in the hydrosphere and triggers habitat destruction and species loss in the biosphere.
Chapter 13 Earth as a System: Energy, Matter and Life Solutions
Class 9 Science Earth as a System: Energy, Matter and Life Exercise Solutions
(i) Cryosphere: Rising atmospheric temperatures accelerate the melting of polar ice caps and mountain glaciers, drastically shrinking snow-covered surfaces and lowering regional albedo. (ii) Hydrosphere: Meltwater influx causes sea-level rise that threatens coastal areas, alters ocean currents and intensifies weather extremes, driving heavy floods and severe droughts. (iii) Biosphere: Terrestrial and marine species suffer severe habitat loss, coral bleaching and disrupted food webs, threatening overall biodiversity.
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