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Which of the following pollutants is the major cause of respiratory diseases ?

Fine suspended particles penetrate deeply into the respiratory system and are a major cause/aggravator of respiratory disease. Fine particles enter the respiratory tract…

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Which of the following pollutants is the major cause of respiratory diseases ?
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Answer and explanation

Correct answer A

Fine suspended particles penetrate deeply into the respiratory system and are a major cause/aggravator of respiratory disease.

Fine particles enter the respiratory tract deeply.
Nitrogen oxides
Also harmful, but not the intended major particulate contrast.
Carbon monoxide
Primarily disrupts oxygen transport.
Volatile organic compounds
A diverse gas class rather than the fine-particle contrast.

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