<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
Explain it to me in a single sentence in simpler terms.<|im_end|>
<|im_start|>assistant
The sky appears blue because the gases and particles in the Earth's atmosphere scatter the blue light from the sun in all directions, this is called Rayleigh scattering.<|im_end|>