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Author Question: With respect to reactivity on the surface of the earth, chlorofluorocarbons are A) very reactive. ... (Read 66 times)

amal

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on: Aug 27, 2018
With respect to reactivity on the surface of the earth, chlorofluorocarbons are
 
  A) very reactive.
  B) very unreactive.
  C) moderately reactive.
  D) variable depending upon the chlorofluorocarbon.

Question 2

Liquid crystal display (LCD) monitors have largely replaced cathode ray tube (CRT) display monitors for televisions and computers.
 
  Which of the following is a problem that results from use of LCD monitors?
  A) The LCD monitors need to be shielded with lead, and lead is a toxic metal.
  B) Large amounts of nitrogen trifluoride (NF3 ) are used in production of LCDs, and much of it is released to the atmosphere. NF3 is a greenhouse gas that is much more efficient at trapping atmospheric heat than other greenhouse gases, such as CO2.
  C) LCD monitors use less energy than CRT monitors do.
  D) Manufacturing of LCD monitors releases much more CO2 into the atmosphere than manufacturing of CRT monitors did.


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Dnite

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

B

Answer to Question 2

B


amal

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Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review

LVPMS

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Reply 3 on: Yesterday
Gracias!

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