MCQ
Low visibility during cold weather is due to $ ..........$
  • A
    Formation of fossil fuel.
  • Unburnt carbon particles or hydrocarbons suspended in air mixed with fog.
  • C
    Lack of adequate power supply.
  • D
    Ultraviolet radiations.

Answer

Correct option: B.
Unburnt carbon particles or hydrocarbons suspended in air mixed with fog.
During winter, the water droplets condense in the air and lower visibility by forming fog. The dust particles also stick around the droplets thus lowering the visibility further.
This phenomenon results in the formation of smog $($smoke $+\ \text{fog})$ which lowers the visibility during cold weather seasons.

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