How much of the earth's surface is covered by water?

What was the most difficult obstacle to overcome in the creation of an autonomous state after indian independence was achieved? a british willingness to go to war to retain the region b. religious differences between hindus and muslims c. ethnic differences between tribal regions d. indian princes' inability to decide on a format of government

How much water is in the ocean in cubic kilometers

How does the bare soil surface type affect the amount of runoff