Question

why earth is known as blue or watery planet​

Answer 1

Answer:

$\mathfrak{\underline{Hello!!}}$

The earth is known as blue planet because the 3/4 part of earth is covered with water so this way earth is called the blue planet.

Answer 2

Explanation:

Earth is the only planet which has oxygen in its atmosphere .

♢♢ It is called blue or watery plaet because 3/4 of its surface was covered with water (which is blue )and so it appears blue and due to large amount of water on it is signifies as watery planet