Imagine an Earth where no life is present, but that has an atmosphere and oceans that are identical to those that exist today. If lightning strikes, would you predict that life would form on this alternate Earth?
A) Yes, because present-day oxygen levels in Earth's atmosphere would be conducive to the formation of amino acids.
B) Yes, because present-day oxygen levels in Earth's atmosphere would be conducive to the formations of nucleotides.
C) No, because oxygen levels on present-day Earth are much lower compared to those on early Earth, and would not be conducive to the formation of amino acids.
D) No, because oxygen levels on present-day Earth are much higher compared to those on early Earth, and would not be conducive to the formation of amino acids.
Correct Answer:
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