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Particles that are small compared with the light wavelength scatter blue light more strongly than red light. Because of this, the tiny gas molecules that make up our Earthâs atmosphere (mostly oxygen and nitrogen) scatter the blue portion of sunlight in all directions, creating an effect that we see as a blue sky. Within the visible range of light, red light waves are scattered the least by atmospheric gas molecules.
Rayleigh scattered produces blue sky and the color the clouds receives. Mei scattering is responsible for the color we see. Even with Rayleigh scattering taking place in the atmosphere, over one-half of the sun's 'white' light continues through the atmosphere reaching the earth's surface. Next, blue light waves scatter at a rate about four times stronger than red light waves.