Multiple choice general knowledge science & technology

Earth appears blue for outer space due to __________

  1. Rayleigh scattering

  2. Raman Effect

  3. Refraction

  4. Reflection
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Rayleigh scattering causes Earth to appear blue from space. This phenomenon occurs because sunlight interacts with gas molecules in Earth's atmosphere, scattering shorter wavelengths (blue and violet) more efficiently than longer wavelengths. The same effect makes the sky appear blue when viewed from Earth's surface.

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