यदि पृथ्वी पर महासागर बने लेकिन प्रकाश संश्लेषी जीवन न विकसित हुआ तो कौन सा वातावरणीय परिवर्तन सीमित रहता?
If oceans formed but photosynthetic life did not evolve which atmospheric change would remain limited?
Explanation opens after your attempt
A. मुक्त ऑक्सीजन का जैविक संचयBiological accumulation of free oxygen
Concept
Oceans were chemical media but photosynthesis was decisive for oxygen rise. Exam tip: separate roles of oceans and organisms.
Why this answer is correct
The correct answer is A. मुक्त ऑक्सीजन का जैविक संचय / Biological accumulation of free oxygen. Oceans were chemical media but photosynthesis was decisive for oxygen rise. Exam tip: separate roles of oceans and organisms.
Exam Tip
महासागर रासायनिक माध्यम थे पर ऑक्सीजन वृद्धि में प्रकाश संश्लेषण निर्णायक था। परीक्षा में महासागर और जीवों की भूमिकाएँ अलग रखें।
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