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Author Question: What is an advantage of using chlorine gas to disinfect drinking water supplies? A) It provides ... (Read 37 times)

CORALGRILL2014

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on: Jul 29, 2018
What is an advantage of using chlorine gas to disinfect drinking water supplies?
 
  A) It provides residual protection against pathogens.
  B) It gives the water a fresh taste.
  C) Residual chlorine in water helps to whiten teeth.
  D) Excess chlorine is absorbed in our bodies as a mineral supplement.

Question 2

Why are there few odors emanating from a properly managed composting toilet?
 
  A) Tight seals prevent the escape of odors.
  B) Odors are absorbed by a layer of water.
  C) Decomposition is aerobic.
  D) The ventilation system steers odors through a carbon filter.


pratush dev

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: C


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