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Author Question: In the amended Montreal Protocol, many nations agreed to phase out ______________ by the year 2000. ... (Read 52 times)

ap345

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on: Jul 28, 2018
In the amended Montreal Protocol, many nations agreed to phase out ______________ by the year 2000.
 Fill in the blank(s) with correct word

Question 2

Pencil lead (graphite) is made primarily of
 a. oil.
  b. PbO2.
  c. carbon.
  d. Pb.


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fraziera112

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Reply #1 on: Jul 28, 2018
Answer to Question 1

CFCs

Answer to Question 2

c


ap345

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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