Which of the following observations led astronomers in the late 1800s to suspect that there might be life on Mars?
A) Seasonal variations in dark surface markings
B) The observation that its atmosphere is largely oxygen
C) The detection of liquid water on the surface of Mars
D) Unexplained flashes of light on the night side of the planet
Correct Answer:
Verified
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Q26: Which of the following supports the claim
Q27: In what way does Mars differ significantly
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Q29: Why does Mars have less heat available
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