Sources of Water


 
 
Concept Explanation
 

Sources of Water

Sources of Water in Nature:

Water in its liquid form occurs in nature as rainwater, surface water and underground water. It is also found in the soil and in the air.

1. Rainwater  is the purest form of natural water because it is naturally distilled Water. Water vapour from the seas and oceans form clouds. The water vapour in the clouds condenses and forms water droplets which fall on the earth as rain. Thus, rainwater is fairly pure.

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Sample Questions
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Question : 1

Statement (i) : The sea water is saline.

Statement (ii) : The sea water contains many dissolved salts.

Right Option : C
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Question : 2

Statement (i) : Role of ocean in supplying usable water is quite important.

Statement (ii) : When the sea water reaches us, in various other forms of sources of water, it is no more saline.

Right Option : C
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Question : 3

_____________ is the main source of useable water for us.

Right Option : B
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