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UPSC 1997: Which one of the following conditions is most relevant for the presence of life on Mars?
(a)Atmospheric composition
(b)Thermal conditions
(c)Occurrence of ice caps and frozen water
(d)Occurrence of ozone
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Not attemptedCorrect Answer: (c) Occurrence of ice caps and frozen water
Liquid water (or its solid reservoirs) is regarded as the most critical prerequisite for life. Mars possesses polar ice caps and extensive near-surface water-ice deposits; NASA notes that dusty water-ice on Mars could create pockets of meltwater capable of supporting life, highlighting the significance of the planet’s ice caps and frozen water. Therefore occurrence of ice caps and frozen water (option c) is the most relevant condition, whereas atmospheric composition, temperature range or ozone presence are secondary factors. ([science.nasa.gov](https://science.nasa.gov/photojournal/dusty-water-ice-in-mars-dao-vallis/?utm_source=openai))
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What is the correct answer to this UPSC 1997 Science & Technology question?▼
The correct answer is option (c): Occurrence of ice caps and frozen water. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Space Technology & Astronomy question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1997, GS Paper 1, as Question 70. It falls under Science & Technology > Space Technology & Astronomy.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Space Technology & Astronomy?▼
UPSC has asked 69 questions from Space Technology & Astronomy (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.