Question

Why does the sky appears blue in color?? ​

Answer 1

Short Answer: Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

Answer 2

Answer:

A bluish colour to the skin or mucous membrane is usually due to lack of oxygen in the blood . the medical term is cyanosis

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