Page 2 - COMPOSITION AND PROPERTIES OF AIR

IN T R O D U C T IO N
INTRODUCTION

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• •The two most important things

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without which we won’t be able to
w i t h o u t w h i c h w e w o n ’t b e a b l e t o
l i v e a r e a i r a n d w a t e r .
live are air and water.
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• • The air is all around us in our
environment, and we take it in
e n v i r o n me n t , a n d w e t a k e i t i n
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when we breathe.

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• •Water is important to us in many

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ways. It is used for bathing,
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drinking, washing, cleaning,

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cooking etc.
c o o k i n g e t c .