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kenzie126:
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
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shisui:
a little to no oxygen
shisui:
because the volcanoes erupted leaving harmful gasses in the atmosphere...when pangea broke apart the volcanoes also did leaving the air cleaner
shisui:
There may have also been small amounts of carbon monoxide, hydrogen sulfide, and hydrogen cyanide
shisui:
did that help?
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