melisa2000 melisa2000

25-10-2017
Biology

contestada

What has caused the earth’s atmosphere to change from 4.4 billion years ago the present??!! I could anyone help me to answer this question please!!! Really emergency!!!!

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loggey2 loggey2

25-10-2017

Different gases and natural disasters and warming and cooling of the Earth lead to many changes in the past 4.4 billion years.

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