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Author Question: Select the substance that is thought to be partially responsible for depleting the concentration of ... (Read 31 times)

Mollykgkg

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on: Aug 27, 2018
Select the substance that is thought to be partially responsible for depleting the concentration of ozone in the stratosphere.
 
  A) CFCl3
  B) CO2
  C) O2
  D) N2
  E) He

Question 2

The two allotropic forms of phosphorus are ________ and ________.
 
  A) black, red
  B) white, black
  C) white, yellow
  D) white, red
  E) black, yellow


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kswal303

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

A

Answer to Question 2

D


Mollykgkg

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Reply 2 on: Aug 27, 2018
Gracias!

coreycathey

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Reply 3 on: Yesterday
Wow, this really help

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