Answer :

(i) Minamata disease is a disease that first occurred in people of Japan. The water bodies polluted with high levels of mercury were consumed by people which caused toxicity in their bodies and lead to this disease. The symptoms noticed were- ataxia, numbness in the hands and feet, muscular weakness, and damage to hearing and speech.


ii) Itai-Itai is a disease that also occurred in people of Japan in 1912 by consuming water polluted with high levels of Cadmium. The disease is characterized by severe pain in joints.


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