Which of these diseases is not caused by improper disposal of sewage?
Which of the following disease cannot be caused by drinking of river water contaminated with untreated sewage?
(a) cholera
(b) typhoid
(c) tuberculosis
(d) diarrhoea
Diseases like typhoid, cholera, jaundice are caused due to ______________.
Diseases such typhoid, cholera and jaundice are caused due to: