Multiple Choice
If you found absorption rising from _________ in the spectrum of a planet, you could conclude that it might contain some form of life.
A) oxygen
B) methane
C) water vapor
D) oxygen, methane, or water vapor
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q20: The presence of gases like carbon dioxide
Q21: In the stratosphere of the Earth's atmosphere,
Q22: For the first 1 billion years of
Q23: _ in our atmosphere is a direct
Q26: Earth's sky is blue because:<br>A) blue light
Q27: The best way to look for life
Q28: According to the figure shown below, approximately
Q29: Aurorae are produced only near the northern
Q30: The amount of carbon dioxide in the
Q78: Earth has roughly _ times more atmospheric