Question

Hello dear friends please help my sister..


1)name four different things that air contains describe any one of them.
2)what are the three properties of air?

Answer 1

1 nitrogen,argon,oxygen,co2 etc.o2 is an important compound which covers 21% of earths surface.It is used by all organisms for aerobic respiration

Answer 2

Hello



1)the four different things that air contains are dust,germs,smoke,nitrogen...Some is given out when some thing burns.....

2)The three properties of Air are..

1)air has weight.
2)air occupies space.
3)air is invisible..




Thanks!!