Question 46
Microorganisms and HealthThe use of water closet and septic tanks is preferred to the use of bucket and pit latrines because
- A.it is cost effective.
- B.contaminated faeces are completely kept away from flies.
- C.the water for flushing contains chlorine which kills the germs.
- D.it prevents flies from breeding.
Show the answer and explanation
Answer: B (contaminated faeces are completely kept away from flies.)
Explanation
Flushed faeces go straight into a closed tank, so flies cannot touch them and spread germs to food.