GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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50%
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30%
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70%
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None of the above
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Detailed explanation-1: -Though the Earth’s surface has around 71% percent water, we still face water shortage because most of the water available is in oceans. This water is salty and cannot be used for our daily activities directly. The process of converting this salt water to freshwater is very expensive.
Detailed explanation-2: -Although water covers 75 percent of the world’s surface, 97.5 percent of the earth’s water is salt water; of the remaining 2.5 percent, most is locked away as groundwater or in glaciers. All life depends on water.
Detailed explanation-3: -Water covers about 71% of the Earth’s surface. Of this 71%, about 97.3% of water is saltwater in the oecans and is not suitable for direct human consumption. The remaining 2.7% is freshwater that can be utilised for our daily needs.
Detailed explanation-4: -About 70% of the Earth’s surface is covered with water.