Question

Why is the earth called the water planet​

Answer 1

Because it's mostly filled with water. There's more water than there is Erth. And there's more water in this planet than there is in many other planets.

Answer 2

Earth is called the blue planet because:

• 70% of its surface is covered with water, meaning it is abundant in it.
• From the space, it looks like a blue ball.

These are some of the factors for considering earth as a blue planet.