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Author Question: The most abundant greenhouse gas in Earth's current atmosphere is a. carbon dioxide (CO2). b. ... (Read 171 times)

fox

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on: Jul 13, 2018
The most abundant greenhouse gas in Earth's current atmosphere is
   a. carbon dioxide (CO2).
   b. nitrous oxide (N2O).
   c. water vapor (H2O).
   d. methane (CH4).
   e. chlorofluorocarbons (CFCs).

Question 2

The only substance near Earth's surface that is found naturally in the current atmosphere as a solid, liquid, and a gas is
   a. carbon dioxide.
   b. water.
   c. molecular oxygen.
   d. ozone.
   e. carbon.


britb2u

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

ANSWER: c

Answer to Question 2

ANSWER: b


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fox

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Reply #2 on: Jul 13, 2018
Thank you


britb2u

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Reply #3 on: Jul 13, 2018
No problemo


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