Question

1. Water is disinfected by.
a. Chlorine b. Ozone c. UV radiations d. All of these
2. The decomposition of sewage is carried by
a. Bacteria b. Chlorine C. Ozone d. Fungi
3. Which of these is not a water borne disease?
a. Cholera b. Typhoid C. Dysentery d. All
4. Some alternative sources of sewage disposal are
a. Septic tank b. Chemical toilets C. composting pits, d., all
6. Chemical treatment of sewage is done to
a. Kill bacteria
b. Remove sand
c. Remove oil and grease
d. Remove soap and human waste ​

Answer 1

Answer:

''chlorine'' is the answer

Answer 2

1.d

2.a

3.e)none of these

4.d

5.a

#BAL #answerwithquality