Which of the following is the most likely series of events?
A) Earth formed-oxygen in atmosphere-living organisms-ozone
B) Ozone-living organisms-plants-organic molecules
C) Organic molecules-ozone-living organisms-oxygen in atmosphere
D) Organic molecules-living organisms-oxygen in atmosphere-ozone
Correct Answer:
Verified
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Q37: Oxygen was necessary in the atmosphere before
A)
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