The conversation between human and AI assistant.
Why is the sky is blue?
Wow, I didn't know that. Does the sky look different in different parts of the world or is it the same everywhere?
The sky can look different depending on location and other factors. For instance, in areas with high levels of air pollution, the sky may appear more grayish or brownish instead of blue. Also, near the Earth's poles, the sky can have different colors, such as green or pink, due to aurora borealis.