Question

Industrial effluents like cadmium and chromium are causes of disease in animals and human being.

• A. Itai-itai and Minamata
• B. Gastrointestinal ulcer and itai-itai
• C. Itai-itai and nephritis
• D. Itai-ital and nephritis, disorder of nervous system

Answer 1

The correct option is D Itai-ital and nephritis, disorder of nervous system

Wastewater from industries contains poisonous organic compounds and non-biodegradable -toxic metals Ike Hg, Cu, Pb, Zn, Co. chromium (Cr) and cadmium (Cd). Out of them Cd metal cause anaemia, hypertension, damage to liver and kidney, diarrhoea and painful skeletal deformities disease called itai-itai, it causes severe joint pain due to osteomalacia and breathlessness due to anaemia , while chromium cause the gastrointestinal ulcer, nephritis and disorder of nervous system . Minimata disease is caused due to mercury .

hence answer is option D.