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Author Question: The gas that shows the most variation from place to place and from time to time in the lower ... (Read 130 times)

s.tung

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on: Jul 13, 2018

The gas that shows the most variation from place to place and from time to time in the lower
  atmosphere is:
  a. ozone (O3).
  b. carbon dioxide (CO2).
  c. water vapor (H2O).
  d. methane (CH4).
  e. argon (Ar)



Question 2

In a volume of air near the earth's surface, __________ occupies 78 percent
  and __________ nearly 21 percent.
  a. nitrogen, oxygen
  b. hydrogen, oxygen
  c. oxygen, hydrogen
  d. nitrogen, water vapor
  e. hydrogen, helium



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frankwu0507

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

c

Answer to Question 2

a


s.tung

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  • Posts: 577
Reply 2 on: Jul 13, 2018
Excellent

AngeliqueG

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Reply 3 on: Yesterday
Wow, this really help

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