Which Planet is known as Watery Planet?

Which Planet is known as Watery Planet?

A. Earth 
B. Mars
C. Jupiter
D. Mercury

If you look down at our planet from outer space, most of what you see is water; 71% of the planet’s surface is covered by ocean and it is because of this that the Earth is sometimes called “the water planet”. Only about three-tenths of our globe is covered with land.