The-Living-World Question 702
Question: According to one of the most widely accepted theories the earth’s atmosphere, before any life had originated on this planet, consisted of a mixture of [CPMT 1981, 84, 2002]
Options:
A) Water vapours, $ H_2,NH_3 $ and $ CH_4 $
B) $ H_2,CO_2,NH_3 $ and $ CH_4 $
C) $ O_2,NH_3,CH_4 $ and water vapours
D) Ozone, $ CH_4,O_2 $ and water vapours
Show Answer
Answer:
Correct Answer: A
BETA
