71% of earth is covered by water but very little be used by human.why?
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because very few amount of water is safe for consumption.
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It is a well-known fact that 71% of earth is covered by water but very little be used by human.
It is because few amount of water is only safe for drinking.
The remaining amount of water is salty and dangerous for consumption.
Most of the water sources in our globe are containing salt water which is not suitable for consumption.
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