GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Astronomers are convinced that liquid water was present on Mars in the past because
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huge subsurface deposits of ice have been seen with X-ray telescopes.
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during each martian summer large lakes are observed as the polar cap melts.
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there is a huge amount of water vapor in martian clouds.
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the surface has old riverbed channels cut on it.
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Explanation:
Detailed explanation-1: -The satellite has an ice-penetrating radar called MARSIS, which can see through Mars’ southern ice cap. It revealed an area at the base of the ice that strongly reflected the radar signal, which was interpreted as an area of liquid water beneath the ice cap.
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