biosphere vs housing

biosphere

noun
  • The totality of living organisms and their environment. 

  • The part of the Earth and its atmosphere capable of supporting life. 

housing

noun
  • Residences, collectively. 

  • A mechanical component's container or covering. 

  • A niche for a statue. 

  • A houseline. 

  • That portion of a mast or bowsprit which is beneath the deck or within the vessel. 

  • A cover or cloth for a horse's saddle, as an ornamental or military appendage; a saddlecloth; a horse cloth; in plural, trappings. 

  • The activity of enclosing something or providing a residence for someone. 

  • An appendage to the harness or collar of a harness. 

  • The space taken out of one solid to admit the insertion of part of another, such as the end of one timber in the side of another. 

How often have the words biosphere and housing occurred in a corpus of books? (source: Google Ngram Viewer )