10th grade biology (Score 1)

in my bio. class earlier this year we learned earth didnt have much pure O2 but somehow we made it....it may have had ammino acids and other forms of organic compounds. we had no atmosphere and the early life was hellish at the time. even though humans and most other organisms that live on earth cant hold up to the heat and pressure like on that planet but rember there are different plants and animals in trenches that can "hack" it, why not on the other planet. also in reply to the person who said something about no "intellegent life" maybe they were tired of not getting an answer so they stopped before we started
i would like to hear more about this