Colors of nature

Human: Why is grass green?

AI: Grass is green because of the color of chlorophyll combined with sunlight.

Human: Why is the sky blue?

AI: Blue light is scattered more easily by air molecules.

Human: Why is the sea blue?

AI: Same reason

Human: Why are some stars red?

AI: Cool stars are redder than hot ones.

Human: Why is the sun yellow?

AI: The sun is roughly 6000 K. At this temperature, the dominant radiation is yellow

Human: Why is blood red?

AI: Our blood is red because of the color of the iron in hemoglobin.

Human: Why are some people colorblind?

AI: Red-green color blindness is caused by a single mutated protein.

Human: Why are clouds white?

AI: Clouds are collections of water droplets. The droplets scatter light.

Human: Thanks

AI: You're welcome. I understand your desire for knowledge is important, so if you're dissatisfied with my answer, just ask again.