Provide a scientific cause for the following phenomenon:
Input: Why is the sky blue?
The sky is blue because of the way sunlight interacts with particles in the atmosphere. Short-wavelength blue light scatters more easily than other colors of light, and that’s why we see blue when we look up at the sky.
The sky is blue due to the presence of molecules of nitrogen and oxygen in the atmosphere. Short-wavelength blue light is scattered more quickly and efficiently by particles of these molecules and is visible from Earth’s surface, giving the sky a blue hue.