Asked: UPRO/ARO (Mains) 2016medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
निम्नलिखित में से कौन-सी गैस प्राचीन (आदिम) पृथ्वी के वायुमंडल से अनुपस्थित थी?
Which of the following gases was absent from the atmosphere of primitive Earth?
SELECT CORRECT OPTION:
A
मीथेन
Methane
B
अमोनिया
Ammonia
C
ऑक्सीजन
Oxygen
Correct
D
कार्बन डाइऑक्साइड
Carbon dioxide
Official Solution & Explanation:
Correct Answer: Option C(ऑक्सीजन)
प्राचीन (आदिम) पृथ्वी के वायुमंडल में ऑक्सीजन ($O_2$) गैस नगण्य या अनुपस्थित थी, जबकि मीथेन ($CH_4$), अमोनिया ($NH_3$), कार्बन डाइऑक्साइड ($CO_2$) आदि गैसें उपस्थित थीं।
Oxygen ($O_2$) was absent or negligible in the atmosphere of primitive Earth, while methane ($CH_4$), ammonia ($NH_3$), and carbon dioxide ($CO_2$) were present.
Subject: General Science•Topic: Evolution•Subtopic: Evolution
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