Blue Baby Syndrome is caused by the contamination of

Excess of which of the following in the blood causes the ‘Blue Baby Syndrome’ disease?

The Minamata disease of Japan in 1953 was caused by eating fish contaminated by

The disease caused by HIV is –

Which one of the following diseases is not due to contamination of water?

Kwashiorkor, a form of malnutrition, is caused by the deficiency of