1. | 20 billion years back | 2. | 10 billion years back |
3. | 4.5 billion years back | 4. | 3.0 billion years back |
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I: | The first form of life could have come from pre-existing non-living organic molecules (e.g. RNA, protein, etc.) |
II: | The formation of life was preceded by chemical evolution, i.e., the formation of diverse organic molecules from inorganic constituents. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.