Chemistry: The Earth and its Atmosphere. 0.0 / 5 ? Created by: LucasG435Created on: 17-01-18 18:22 Date/period Event(s) 4.6 Billion Years Ago 3.6 Million Years Ago 2.76 Million Years Ago The last 200 million years ChemistryThe earth and its atmosphereGCSEAQA
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