GEOLOGY

Detailed explanation-1: -Over 71 percent of the Earth is covered with water. Therefore from outer space it appears blue and so Earth is called the ‘Blue Planet’.

Detailed explanation-2: -It appears blue because the oceans reflect blue light, and they cover most of its surface. It appears green in some areas because plantlife covers much of the land area, and plants reflect green light.

Detailed explanation-3: -Neptune: The Blue Planet | NASA.

Detailed explanation-4: -The planet looks blue from outer space since two-thirds of the surface is covered with water, so it is called a blue planet. That is 71% of the earth is covered by water. It is the fifth-largest planet in terms of size.

Detailed explanation-5: -Earth is known as the ‘blue planet’ because of the vast oceans that cover two-thirds of its surface.