Carbon monoxide is a pollutant, which causes_________________?
Correct answer: C. Asphyxiation (suffocation) leading to death
- A. Respiratory disease (e.g. asthma)
- B. Retardation in crop growth
- C. Asphyxiation (suffocation) leading to death
- D. Damage to building materials like marble
Explanation
Carbon monoxide binds strongly to haemoglobin and forms carboxyhaemoglobin, preventing blood from carrying enough oxygen. Severe exposure causes oxygen starvation, unconsciousness and death by suffocation.
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