Q. Water covers __________ % of the Earth's surface.
Answer: 75
Notes: Water makes up about 71% of the Earth’s surface, while the other 29% consists of continents and islands.It is because of this that the earth is also known as Blue Planet. 96.5% of all the Earth’s water is contained within the oceans as salt water, while the remaining 3.5% is freshwater lakes and frozen water locked up in glaciers and the polar ice caps.

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