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Author Question: Standing at the top of a tall mountain, a breath of air would contain a lot fewer molecules than a ... (Read 71 times)

james0929

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on: Jul 13, 2018

Standing at the top of a tall mountain, a breath of air would contain a lot fewer molecules than a
  breath of air taken at sea level, but the proportion of oxygen in the two breaths of air, relative to the other
  constituents, would remain the same. Indicate whether the statement is true or false.



Question 2

The ozone hole is an actual hole in the atmosphere, a region of complete vacuum. Indicate whether the statement is true or false.


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mcinincha279

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Reply #1 on: Jul 13, 2018
Answer to Question 1

true

Answer to Question 2

false


james0929

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Reply 2 on: Jul 13, 2018
:D TYSM

mcarey591

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Reply 3 on: Yesterday
Excellent

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