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Author Question: Polychlorinated biphenyls (PCBs) are no longer used as plasticizers because they are considered to ... (Read 84 times)

CQXA

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on: Aug 27, 2018
Polychlorinated biphenyls (PCBs) are no longer used as plasticizers because they are considered to be an environmental hazard.
 
  Indicate whether the statement is true or false

Question 2

Approximately what percentage of the energy used to support our current lifestyle comes from fossil fuels?
 
  A) 50
  B) 35
  C) 15
  D) over 85


fdliggud

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

TRUE

Answer to Question 2

D


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