Which one of the following is a water borne disease?

Correct answer: (c) Cholera

Explanation

Waterborne diseases are caused by pathogens spread through contaminated water used for drinking, cooking or washing.

Cholera (caused by Vibrio cholerae) is a classic waterborne disease, along with typhoid, diarrhoea and hepatitis A.

Smallpox and tuberculosis are airborne, while malaria is vector-borne (spread by mosquitoes).