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UPSC 2005: Assertion (A): Existence of human life on Venus is highly improbable. Reason (R): Venus has extremely high level of carbon dioxide in its atmosphere.
(a)Both A and R are individually true and R is the correct explanation of A
(b)Both A and R are individually true but R is not the correct explanation of A
(c)A is true but R is false
(d)A is false but R is true
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Not attemptedCorrect Answer: (a) Both A and R are individually true and R is the correct explanation of A
Human survival on Venus is virtually impossible owing to surface temperatures >460 °C and pressures 90 times Earth’s, produced by an atmosphere that is over 96 % carbon dioxide. The very high CO₂ concentration drives a runaway greenhouse effect, directly explaining the inhospitable conditions; thus both statements are true and R correctly explains A. ([britannica.com](https://www.britannica.com/place/Venus-planet/The-atmosphere?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2005 Science & Technology question?▼
The correct answer is option (a): Both A and R are individually true and R is the correct explanation of A. 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 2005, GS Paper 1, as Question 84. 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.