biosphere
noun /ˈbaɪəʊsfɪə(r)/
  /ˈbaɪəʊsfɪr/
 [singular] (specialist)- the part of the earth’s surface and atmosphere in which plants and animals can liveTopics Spacec2Word Originlate 19th cent.: coined in German from Greek bios ‘life’ + sphaira ‘ball’.