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Author Question: Which of the following regions of the earth's atmosphere contains the ozone layer? A) mesosphere ... (Read 125 times)

viki

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on: Aug 27, 2018
Which of the following regions of the earth's atmosphere contains the ozone layer?
 
  A) mesosphere
  B) stratosphere
  C) thermosphere
  D) troposphere

Question 2

Which of the following is not a covalent compound?
 
  A. PCl3
   B. N2
   C. Na3PO4
   D. SiO2


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memslove

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

B

Answer to Question 2

C


viki

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  • Posts: 525
Reply 2 on: Aug 27, 2018
Gracias!

triiciiaa

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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