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Author Question: Which of the following is a threat to the ozone layer? A) coal burning B) freon refrigerants C) ... (Read 28 times)

oliviahorn72

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Which of the following is a threat to the ozone layer?
 
  A) coal burning
  B) freon refrigerants
  C) Both of the above.
  D) automobile exhaust
  E) None of the above.

Question 2

The contribution of efficiency to U.S. energy services is
 
  A) less than the contribution of oil but still significant.
  B) insignificant.
  C) larger than the contribution of oil.
  D) about as large as the contribution of oil.



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voltaire123

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Answer to Question 1

B

Answer to Question 2

C




oliviahorn72

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


connor417

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Reply 3 on: Yesterday
Gracias!

 

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