different between hydrospere vs cryosphere

English

cryo- +? -sphere

cryosphere (plural cryospheres)

All those areas of the Earth where the surface is frozen.
Meronyms: glacier, ice cap, ice sheet, permafrost, sea ice, snow
Coordinate terms: hydrosphere, biosphere, atmosphere, lithosphere
- 2009, Olav Slaymaker, Richard Kelly, The Cryosphere and Global Environmental Change, John Wiley & Sons (?ISBN), preface:
  This book attempts to deal integratively with all elements of the cryosphere in the context of a changing global environment. Not only is that global environment changing with respect to climate, but the accelerating pressures on the environment from anthropogenic activity are complicating our understanding of cryospheric change.

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