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Author Question: Secondary treatment of sewage involves A) filtering and aeration. B) settling and sludge ... (Read 49 times)

Mr.Thesaxman

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on: Aug 27, 2018
Secondary treatment of sewage involves
 
  A) filtering and aeration.
  B) settling and sludge removal.
  C) chlorination.
  D) Secondary sewage treatment involves all of the above.

Question 2

Carbon can exist is several forms. Which of the following is a form of carbon and does not contain other atoms besides carbon?
 
  A) fullerenes
  B) celluloid
  C) cellulose
  D) starch


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nikmaaacs

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Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A


Mr.Thesaxman

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Reply #2 on: Aug 27, 2018
Thank you!


nikmaaacs

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Reply #3 on: Aug 27, 2018
Always glad to help...


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