how does earth affect where humans live ?

Question

anonymous · Answer

Please answer my question because i have a project on it that's due friday

anonymous · Answer

can someone please answer my question?

praetorian.10 · Answer

umm what???? Earth is like the only place where humans can live @arabpride 

are you sure this is the full question?

anonymous · Answer

The earth provides places for huans to live... some places the earth provide are unsustainable for us to live on... there may not have enough water or the altitudes may be too high for us to breath..

arabpride · Answer

bahahahaha i'd recommend you change the statement x'D soundz funny.. although i heard there are life-formz on Calisto =.='

anonymous · Answer

when you do think of affect over human... consider some following physical properties like gravity, light, and ofcourse believing that earth is the only source for life in known universe.