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  9. Q134

UPPSC PCS 2021 · Question 134 of 150

Diffusion of light in the atmosphere takes place due to

Science & Tech

  1. ACarbon dioxide
  2. BDust particlesCorrect
  3. CHelium
  4. DWater vapours

Answer: B. Dust particles

Explanation

Suspended dust particles cause diffusion/scattering of light in the atmosphere.

Source: https://www.drishtiias.com/images/pdf/UPPSC 2021 Prelims GS Paper -1.pdf

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