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Which gas was absent in the atmosphere o...

Which gas was absent in the atmosphere of primitive earth?

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**Step-by-Step Text Solution:** 1. **Understanding Primitive Earth**: The question asks about the composition of the atmosphere during the time of primitive Earth, which dates back approximately 4.5 to 5 billion years ago. 2. **Gases Present in Primitive Atmosphere**: During the formation of Earth, various gases were present in the atmosphere. The significant gases included carbon monoxide, carbon dioxide, methane, and hydrogen sulfide. 3. **Identifying the Least Present Gas**: Among these gases, oxygen was found to be the least abundant. In fact, the amount of oxygen was so low that it was almost negligible in the atmosphere. ...
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