Uncontrolled growth of (1) ___________and (2) ___________ in water pollutes drinking water and may cause the spread of diseases.
Water polluted by various activities cause a number of water-borne diseases. Which of the following is not a water-borne disease?
Question 5
Water polluted by various human activities causes a number of water-borne diseases. Which of the following is not a water-borne disease? (a) Cholera (b) Typhoid (c) Asthma (d) Dysentery
Which is not a contributory cause of a person acquiring a water borne disease?