उपर्युक्त परिच्छेद से निम्नलिखित में से कौनसा सर्वाधिक निर्णायक निष्कर्ष (इनफेरेंस) निकाला जा सकता है ?
Read this question in English
Which among the following is the most critical inference that can be made from the above passage?
(a) Biodiversity sustains the ability of nature to recycle water · (b) We cannot get potable water without the existence of living organisms · (c) Plants, animals and microorganisms continuously interact among themselves · (d) Living organisms could not have come into existence without hydrological cycle
उत्तर और व्याख्या · explanation in English
Answer: (a) जैव-विविधता, प्रकृति की जल के पुनर्चक्रण की सामर्थ्य बनाए रखती है
Water and biodiversity are interdependent: vegetation and soil drive the movement of water, and water passing through fish, trees, bacteria and soil is cleansed. So biodiversity sustains nature's ability to cycle and renew water.
- ✓ (a) 'Vegetation and soil drive the movement of water', and passing through ecosystems water 'is cleansed and made fit for consumption'.
- ✗ (b) 'Cannot ... without' is too absolute; water passes through organisms only 'at least in part'.
- ✗ (c) Generally true, but the passage is about water and biodiversity, not interaction among organisms.
- ✗ (d) How life came into existence is outside the passage.
Remember · Reject absolute words ('cannot', 'never') when the passage hedges ('at least in part'); the right inference keeps the passage's own link.
Question and answer: UPSC's official GS Paper II (2016, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·