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Evolution
Hard
Question
Atmosphere of earth just before the origin of life consisted of
Options
A.
Water vapours, CH
4
, NH
3
and Oxygen
B.
CO
2
, NH
3
and CH
4
C.
CH
4
, NH
3
, H
2
and water vapours
D.
CH
4
, O
3
, O
2
and water vapours
Solution
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Topic:
Evolution
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