पृथ्वी के प्रारंभिक वायुमंडल में मुक्त ऑक्सीजन बहुत कम क्यों थी?
Why was free oxygen very low in Earth's early atmosphere?
Explanation opens after your attempt
A. क्योंकि प्रकाश संश्लेषी जीवन व्यापक रूप से विकसित नहीं हुआ थाBecause photosynthetic life had not widely developed
Concept
Free oxygen was very low in the early atmosphere because biological oxygen production increased later. In exams, do not treat the early atmosphere as the same as today.
Why this answer is correct
The correct answer is A. क्योंकि प्रकाश संश्लेषी जीवन व्यापक रूप से विकसित नहीं हुआ था / Because photosynthetic life had not widely developed. Free oxygen was very low in the early atmosphere because biological oxygen production increased later. In exams, do not treat the early atmosphere as the same as today.
Exam Tip
प्रारंभिक वायुमंडल में मुक्त ऑक्सीजन बहुत कम थी क्योंकि जैविक ऑक्सीजन उत्पादन बाद में बढ़ा। परीक्षा में प्रारंभिक वायुमंडल को आज जैसा न मानें।
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