Which of the Following Gases Were in Earth's Early Atmosphere

question 37

Multiple Choice

Which of the following gases were in Earth's early atmosphere?

• A) water vapor, ammonia, hydrogen, nitrogen
• B) water vapor, ammonia, methane and hydrogen
• C) water vapor, oxygen, methane and nitrogen
• D) nitrogen, oxygen, carbon dioxide and water vapor
• E) carbon dioxide, water vapor, methane, nitrogen

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Definitions:

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An emotional response to an unexpected event, which can range from mild to intense depending on the nature of the surprise.

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A process through which organisms learn to connect a specific stimulus to a particular response with efficiency.

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The abbreviation for the United States, a country located primarily in North America.