What do theories hypothesize about the conditions of Earth's early atmosphere?
A- Little to no oxygen
B- Low levels of ultraviolet radiation
C- Protective atmosphere
D-Very cold temperatures

Question

shisui · Answer

a little to no oxygen

shisui · Answer

because the volcanoes erupted leaving harmful gasses in the atmosphere...when pangea broke apart the volcanoes also did leaving the air cleaner

shisui · Answer

There may have also been small amounts of carbon monoxide, hydrogen sulfide, and hydrogen cyanide

shisui · Answer

did that help?