What is a biosphere?

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What is a biosphere?

• GEOPHYSICS

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• Bio
• Sphere

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• There is only one biosphere on Earth, and thats
  Earth
• The term "biosphere" was coined by geologist
  Eduard Suess in 1875, which he defined as2
• the place on earth's surface where life dwells.

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Whats so special?

• A biosphere is a closed system that is self
  sustaining. It needs nothing replenished from the
  outsideit does it all, itself.
• For example the water cycle.
• Photosynthesis and Respiration

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Specific biospheres

• When the word Biosphere is followed by a number,
  it is usually referring to a specific system or
  number. Thus
• Biosphere 1 - The planet Earth
• Biosphere 2 - A laboratory in Arizona which
  contains 3.15 acres (13,000 m²) of closed
  ecosystem.
• BIOS-3 was a closed ecosystem at the Institute of
  Biophysics in Krasnoyarsk, Siberia, in what was
  then the Soviet Union.
• Biosphere J (CEEF, Closed Ecology Experiment
  Facilities) - An experiment in Japan.

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