Which gas is a biosignature on Mars?
- Correct Answer: Methane
- Carbon dioxide
- Nitrogen
- Oxygen
Explanation: Methane is a potential indicator of microbial life on Mars. (Easy)
More Random Questions
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Ans: Algorithms
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Ans: storm surge
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Ans: bioaccumulation
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Ans: Quern stones
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Ans: pressure
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Ans: convergent
