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What is the main source of carbon monoxide (CO) in urban areas?

What is the main source of carbon monoxide (CO) in urban areas?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Volcanic eruptions
  • B Vehicle emissions
  • C Forest fires
  • D Industrial processes
Correct Answer: Option B
Explanation:
The main source of carbon monoxide (CO) in urban areas is vehicle emissions, especially from incomplete combustion of gasoline and diesel in engines.

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