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Author Question: Upon combustion, which naturally occurring substance in coal is released to potentially create acid ... (Read 139 times)

Chelseaamend

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on: Jul 15, 2018
Upon combustion, which naturally occurring substance in coal is released to potentially create acid rain?
 
  A) Nitrogen
  B) Uranium
  C) Oxygen
  D) Sulfur
  E) All of the above

Question 2

In what geologic time period would the mammoth in this image have existed?
 
  A) Neogene to Quaternary Periods
  B) Cambrian Period
  C) Jurassic to Cretaceous Periods
  D) Permian Period


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wshriver

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A


Chelseaamend

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Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

jackie

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Reply 3 on: Yesterday
Gracias!

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