Multiple choice

Which of the following statements is/are false?

a. Sewage system is like a transport system that carries sewage from the point of being produced to the point of disposal. b. The treatment of sewage consists of two stages - primary treatment and secondary treatment. c. Chlorination is done during the tertiary treatment stage to kill the disease-causing organisms.

  1. Only a

  2. Both a and b

  3. Only b

  4. Both b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as this statement is false. The treatment of sewage consists of three stages - primary treatment, secondary treatment and tertiary treatment.

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