Question

Lung cancer is caused by

• A. Coal mining
• B. Chromium fluoride
• C. Cement factory
• D. Bauxite mining

Answer 1

Answer: (B)

Chromium fluoride

Lung cancer, also known as lung carcinoma is a malignant lung tumour characterized by uncontrolled cell growth in tissues of the lung. Most cancers which start in the lungs, known as primary lung cancers are carcinomas. Chromium fluoride is a carcinogenous hexavalent chromium which is found in the tap water. It increases the risk of lung cancer, kidney cancer, intestinal cancer etc.

So, the correct answer is 'Chromium fluoride'.