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Everyday Science Medium NTS Uploaded: 01 Sep 2026

The main gas responsible for the blue color of the sky is due to:

  • A Absorption of light
  • B Reflection of ocean water
  • C Scattering of sunlight by the atmosphere
  • D Ozone layer
Correct Answer: Option C — Scattering of sunlight by the atmosphere
Explanation:
The sky appears blue because shorter wavelengths of sunlight, like blue, are scattered more by gas molecules in the atmosphere than other colors.
Submitted by: PaperMCQs
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