biosphere vs haven

biosphere

noun
  • The totality of living organisms and their environment. 

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

haven

verb
  • To put into, or provide with a haven. 

noun
  • A peaceful place. 

  • A place of safety. 

  • A harbour or anchorage protected from the sea. 

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