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Q: If all life on Earth were to cease the atmosphere would revert to its primitive oxygen-poor composition and become poisonous to modern plants and animals?
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Related questions

How did primitive algae make it possible for other planets and animals to develop on earth?

Mainly by photosythesis that converted the CO2 in the poisonous early atmosphere, into oxygen.


Was the primitive atmosphere polluted as your present atmosphere?

Yes. The air is never clean.


The primitive earth's atmosphere did not contain?

free oxygen


Without ozone layer the simple organic molecules that was formed in primitive Earth would be destroyed by the radiation of you-v ray Why we say that there was no ozone layer in primitive earth's atmos?

There was an ozone atmosphere on primitive Earth, but not an ozone layer which was formed further on. The primitive atmosphere on the surface of the Earth mostly composed by ozone was pushed upwards by the oxygen formed by dead organisms. That primitive ozone atmosphere on the surface of the Earth protected the forming microorganisms from the UV radiation. JamesWest09


The primitive earth atmosphere is hypothesized to have consisted of?

Hydrogen,methadane,water vapor.


What 4 gases where in primitive earth's atmosphere?

Carbon, Oxygen, Nitrogen, Hydrogen


What energy is involved in the production of large organic molecules in the primitive reducing atmosphere?

Oxygen


The primitive Earth atmosphere is hypothesized to have consisted mostly of?

Hydrogen,mathane ammonia and water vapor.


Is a bearded dragon poisonous?

Yes they are, there poison is similar to rattlesnake but there so primitive that a bite would just cause swelling and irritation


It is significant that is not mentioned as having been abundant in either Earth's first or second primitive atmosphere?

Oxygen


How did the primitive atmosphere differ from atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.


How the did primitive atmosphere differ from your atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.