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Author Question: In the late 1970s, the United States banned the non-essential use of chlorofluorocarbons (CFCs). ... (Read 94 times)

s.tung

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on: Jul 13, 2018
In the late 1970s, the United States banned the non-essential use of chlorofluorocarbons (CFCs). Why?
 A) CFCs are a primary component of photochemical smog.
  B) CFCs are toxic gases.
  C) CFCs reduce the ozone concentration in the stratosphere.
  D) CFCs react with water vapor to form acid rain.

Question 2

Methane (CH4 ), nitrous oxide (N2O), and chlorofluorocarbons (CFCs) are greenhouse gases.
  Indicate whether the statement is true or false


lorealeza77

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Reply #1 on: Jul 13, 2018
Answer to Question 1

C

Answer to Question 2

True


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