Which of the following is the most variable constituent of air?
A) Argon
B) Oxygen
C) Water vapor
D) Nitrogen
Correct Answer:
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Q9: The most abundant gas in the atmosphere
Q10: The second most abundant gas in the
Q11: The transition between the troposphere and the
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Q13: The bottom of the stratosphere is called
Q15: The top of the thermosphere is called
Q16: The ozone layer lies in the
A) stratosphere.
B)
Q17: At 1800 degrees Fahrenheit, this part of
Q18: The coldest region of the atmosphere is
Q19: About 80% of the mass of the
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