ecosphere vs venue

ecosphere

noun
  • the biosphere 

  • The portion of the atmosphere from sea-level to about 4000 meters in which it is possible to breathe without technological assistance. 

venue

noun
  • The place where something happens. 

  • A stadium or similar building in which a sporting competition is held. 

  • A theater, auditorium, arena, or other area designated for sporting or entertainment events. 

  • A neighborhood or near place; the place or county in which anything is alleged to have happened; also, the place where an action is laid, or the district from which a jury comes. 

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