Answer :

Hepatitis – B is not caused by contaminated water. The rest of the diseases i.e. Jaundice, Cholera and Typhoid mentioned are caused by contaminated water. Causative agents of these diseases are :

a. Hepatitis-B – Hepatitis-B virus

b. Jaundice – Seriola quinqueradiata

c. Cholera – Vibro cholerae

d. Typhoid – Salmonella Typhi

Sewage and untreated water from homes and industries contain these pathogens and when thrown into water bodies, harmful diseases breakout.

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