Final answer:
The molecules in the air that scatter the blue, indigo, and violet frequencies are nitrogen and oxygen (option B). When sunlight passes through the Earth's atmosphere, the shorter wavelengths of blue, indigo, and violet light are scattered more easily than the longer wavelengths of red, orange, and yellow light.
Step-by-step explanation:
The molecules in the air that scatter the blue, indigo, and violet frequencies are nitrogen and oxygen (option B).
When sunlight passes through the Earth's atmosphere, it interacts with the molecules in the air. The shorter wavelengths of blue, indigo, and violet light are scattered more easily than the longer wavelengths of red, orange, and yellow light
The scattering of these shorter wavelengths is primarily caused by the molecules of nitrogen and oxygen in the air.