Why do we need to conserve water if earth is practically a closed system? Where does the usable water go?
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we need to conserve water because ...
the useable water come back on earth by rain cycle but at that time mostly it dissolves in seas and in seas there is salty water which cannot be used for drinking purpose. that's why we need to conserve water
the useable water come back on earth by rain cycle but at that time mostly it dissolves in seas and in seas there is salty water which cannot be used for drinking purpose. that's why we need to conserve water
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