The blue colour of the clear sky is due to?

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The blue colour of the clear sky is due to? Answer: Rayleigh scattering

The blue color of the clear sky is due to Rayleigh scattering, a phenomenon where Earth's atmosphere scatters shorter, smaller waves of blue light more than other colors, causing the sky to appear blue to our eyes. Sunlight, which is a combination of all colors, enters the atmosphere and is scattered in all directions by the gas molecules and small particles.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.