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level: global stores

Questions and Answers List

level questions: global stores

QuestionAnswer
what are the 4 categories under the hydrospheresurface water, atmosphere, cryosphere, oceanic
what is included under surface watersoil moisture, lakes, rivers, puddles, ground water, biological water
what is included under the cryospherepermafrost, alpine glaciers, sea ice, ice sheets, ice caps
what is a positive feedback loopwhen the change makes the problem worse
what is a negative feedback loopwhen the change nulifies the problem
give an example of a positive and negative feedback loopnegative: cloud coverage positive: ice albedo effect
give reasons that atmospheric water is important1) clouds and rainfall important part of many systems 2) water vapour, reflects scatters and absorbs solar radiation 3) evaporation/ ghg effect keeps earth habitable
give reasons that cryospheric water is important1) ice albedo feedback loop 2)ocean currents caused by ice at the poles 3) sea level rise if ice melts ( approx. 60m) 4)permafrost high in methane a strong ghg would be released 5) river discharge decline if river source was ice
give reasons that oceanic water is important1) main store 2) largest store of heat and carbon 3) ocean currents distribute heat 4) ocean most diverse ecosystem
give reasons that terrestrial water is important1) source of drinking water eg las vegas and london 2) supports life inland and deserts