ORIGIN OF THE ATMOSPHEREOnline version Order the events by Julia Plaza 1 ORIGIN OF THE ATMOSPHERE Volcanic eruptions released gases(like CO2) into the atmosphere. Animals, plants couldn't live there First bacteria capable of photosynthesis appeared and started releasing oxygen into the atmosphere Earth’s temperature decreased (<100ºC), water vapor condensed, and water began to accumulate in seas Earth started to cool down and crust became solid The Earth was a hot mass of molten rock with a thin atmosphere made of helium and hydrogen The amount of oxygen became similar to today’s, which allowed animal life to develop
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