This topic contains a solution. Click here to go to the answer

Author Question: Which of the following is a threat to the ozone layer? A) coal burning B) freon refrigerants C) ... (Read 30 times)

oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
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.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

voltaire123

  • Sr. Member
  • ****
  • Posts: 301
Answer to Question 1

B

Answer to Question 2

C




oliviahorn72

  • Member
  • Posts: 579
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

For a complete list of videos, visit our video library