In 1953, S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for the origin of the first form of life from pre-existing non-living organic molecules. The primitive earth conditions created include:

1. low temperature, volcanic storms, an atmosphere rich in oxygen
2. low temperature, volcanic storms, reducing atmosphere
3. high temperature, volcanic storms, non-reducing atmosphere
4. high temperature, volcanic storms, reducing atmosphere containing CH4, NH3 etc.
Subtopic:  Urey & Miller Experiment |
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Level 1: 80%+
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The control apparatus of the Urey and Miller experiment was devoid of :
1. a provision for evaporation
2. an arrangement for circulation
3. a source of energy
4. an arrangement for condensation

Subtopic:  Urey & Miller Experiment |
Level 3: 35%-60%
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