Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become abundant?
- Home
- JustAsk
- Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become abundant?
Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become abundant?
How to Earn Points? 
Answers
vasim
Oxygen became abundant with the emergence of photosynthetic beings, approximately, 1.5 billion years after the appearance of life on the planet.