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NEETChemistryEnvironmental Chemistry

What is the primary cause of photochemical smog?

Options

  1. AIndustrial emissions
  2. BForest fires
  3. CAutomobile emissions and sunlight
  4. DVolcanic eruptions

Correct answer

C. Automobile emissions and sunlight

Step-by-step solution

Photochemical smog is primarily caused by the action of sunlight on unsaturated hydrocarbons and nitrogen oxides produced by automobiles and other sources.

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