Earth

your assignment is to read this page. in it's entirety...

the answer is human beings we make up 1% of the worlds atmosphere.

If u disagree leave ur response

I don't just disagree - I think you need to do some basic research before you waste our bandwidth. If you got all the people in the world standing together they wouldn't take up 1% of the world's surface. The troposphere (the bit we could actually survive in) is an average of 7 miles thick - the rest of the 'atmosphere' extends to about 62 MILES about the the surface of the world.

Have a bit of think about how many human beings it would take to fill an area 1% of that....