Big-Bang theory attempts to explain the origin of
Following are the two statements regarding the origin of life.
$(A)$ The earliest organisms that appeared on the earth were nongreen and presumably anaerobes.
$(B)$ The first autotrophic organisms were the chemoautotrophs that never released oxygen.Of the above statements which one of the following options is correct?
It is still a favorite idea for some astronomers.
Write an explanatory note on origin of life.