Page 3 - COMPOSITION AND PROPERTIES OF AIR
P. 3

AIR
                          AI          R








                   •Besides food and water, air

                   is         also            a        very              important


                   element of our life.





                   • All living organisms breathe


                   in air. They cannot survive

                   without air for more than a


                   few minutes.





                   •Air              is           transparent                            and


                   colourless. It occupies space

                   and is present all around us.
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