system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are clouds white?
gpt
Hello! Clouds are white because of something called MIE scattering. As you may know, light is both a particle and a wave. The color spectrum is basically different frequencies of waves, that give off a certain color. The light that comes from the sun is known as “white light” ( which is a combination of every color of the light spectrum) and when this “white light” goes through our atmosphere and scatters with the molecules of clouds, the clouds reflect every single color and turns out white.

An easier example is an apple. When light hits an apple it absorbs the colors orange, yellow, green, blue, indigo, and violet. The only color that it doesn’t absorb, is red, that’s why we see that the apple is red. This is due to the size of the apple molecules, they are around the same size of the red wavelength and in effect, they reflect.

Hope this helps!