Earth is often referred to as the "Blue Planet" due to its abundance of water, with approximately 71% of its surface covered by oceans, seas, and other water bodies.
The Earth's atmosphere scatters sunlight, and blue light is scattered more than other colors, giving the sky and water a blue appearance.
The vast bodies of water on Earth reflect the blue color of the sky, contributing to the overall blue hue of the planet.
Earth's atmosphere is predominantly composed of nitrogen and oxygen, which also contribute to the scattering of blue light.
Different colors of sunlight, such as red and yellow, are absorbed more by the atmosphere, leaving the blue color to be more visible.
When observed from space, Earth appears predominantly blue due to the vast oceans and the scattering of sunlight in the atmosphere.