Question

Q1. Why is Earth called a blue planet or watery planet?​

Answer 1

Answer:

because the 70% of earth's area is covered by water

Answer 2

Because most of the part of the earth is filled with water i.e About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog.