Page 8 - PROPERTIES OF WATER AND IMPURITIES IN WATER

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• •However, we mostly use
water from rivers, lakes
w a t e r f r o m r i v e r s , l a k e s
a n d st r e a ms a s w a t e r i n
and streams as water in
o c e a n s a n d s e a s h a s a
oceans and seas has a
v e r y h i g h s a l t c o n t e n t .
very high salt content.
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Water in water bodies is
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r e p l e n i sh e d b y r a i n s .
replenished by rains.
• •Water from rivers, lakes
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and streams contains
a n d st r e a ms c o n t a i n s
mu d , d i r t , g e r ms a n d
mud, dirt, germs and
s a n d , b e c a u se o f w h i c h i t
sand, because of which it

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cannot be used directly.
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T h e s e s u b st a n c e s r e d u c e
These substances reduce
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the quality of water and

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are called impurities.
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