The biosphere Another world , I can't live there because in biosphere doesn't has a air , oxygen , gravity and food. If I live on Mars I can't sty 1 or 2 months because the food and oxygen maybe I missed. If you want make food you should get a oxygen. The earth has oxygen,air,gravity and food. The human lives in earth because he/she get everything. Unfortunately some people think in mars has human or Strange objects live there . In conclusion, there are many cases to human lives in biosphere on mars .