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प्रश्न
Which among the following chronic lung disease commonly known as 'black ling' disease, leads to reduced life expectancy in coal- minerals ?
विकल्प
Pneumoconiosis
Progressive massive Fibrosis
Mesothelioma
Collier's Asthma
MCQ
उत्तर
Pneumoconiosis
Explanation:
A chronic occupational lung discoal caused by inhaling coal mire dust over an extended period of time. Black lung disease is caused by the silica and carbon in coal dust.
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