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Another type of scattering (called Mie Scattering) is responsible for the white appearance of clouds.
![[Image: white clouds over a canyon (72K)]](/guides/mtr/opt/mch/sct/gifs/mie1.gif){kind=link}
Photograph by Ron L. Holle
Mie scattering occurs
when the wavelengths of visible light are more or less
equally scattered.
Clouds appear white when cloud droplets
effectively scatter all wavelengths of visible light in all directions.
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