in my workbook it says why do you think earth looks like a blue and white marble from space ? the reason why is because there coler blind PLEASE HELP !!!!
Could it be the sky and clouds?
Clouds and oceans??
http://www.ima.umn.edu/geoscience/poster.html
Actually, the reason why the Earth looks like a blue and white marble from space has nothing to do with color blindness. The main reason for this appearance is due to the Earth's atmosphere and its interaction with sunlight.
Here's an explanation to help you understand:
1. The Atmosphere: Earth has an atmosphere composed mainly of nitrogen, oxygen, and trace amounts of other gases. The atmosphere scatters sunlight in all directions. However, the shorter blue and violet wavelengths are scattered more easily compared to the longer red and orange wavelengths.
2. Sunlight and Blue Light: When sunlight enters Earth's atmosphere, it encounters air molecules that scatter the blue light in all directions. This scattering is known as Rayleigh scattering. Blue light has a relatively short wavelength, making it scatter more than other colors.
3. Blue Sky: As sunlight continues to scatter, it creates a blue sky during the daytime. When we observe the Earth from space, this blue scattering dominates our view since the atmosphere acts as a giant filter for sunlight.
4. White Clouds: The white appearance is due to the reflection and scattering of sunlight from water droplets or ice crystals present in clouds. The clouds are made up of tiny particles that scatter sunlight in different directions, resulting in a diffuse white appearance.
5. Land and Water: The white areas you see on Earth from space are often cloud cover, ice, or snow. The blue areas represent bodies of water such as oceans, lakes, and rivers. The landmasses may appear green, brown, or other colors depending on vegetation, soil, and geology.
Therefore, it's not due to "color blindness" but rather the interaction between sunlight, Earth's atmosphere, and the different constituents on the Earth's surface that create the blue and white marble-like appearance from space.