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Earn +20 ptsQ: What was not present in the earth's early atmosphere?
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What gases were present in earths today atmosphere?
Nitrogen
Earths early atmosphere was changed dramatically by the evolution of?
photosynthesis
What gas was present in the earths early atmosphere?
The first atmosphere of the earth was probably mostly hydrogen with some simple hydrides such as water vapor, methane and ammonia. Vulcanism and asteroidal bombardment eventually replaced this with an atmosphere of mostly nitrogen, with carbon dioxide and some of the inert gasses.
Minerals in old rock suggest that earths early atmosphere had little or no free oxygen?
Yes
Which gases made up most of Earths early atmosphere?
mostly carbon dioxide with little or no oxygen.
Related questions
What molecule was not present in early Earths reducing atmosphere?
nitrogen
Was there oxygen in the early earths atmosphere?
yes
What gases were present in earths today atmosphere?
Nitrogen
What gas was lacking from earths early atmosphere in the early precambrian?
oxygen
What gas was not part of early earths atmosphere?
oxygen
What gas was not a part of earths early atmosphere?
nitrogen
What element in earths atmosphere was not present in the far past but is present now?
The element "Oxygen".
Which gas exist in the highest concentration in the earths present atmosphere?
Nitrogen is about 79% of the Earth's atmosphere.
Was the earths early atmosphere made up of mostly oxygen?
no
What was the major contributor of oxygen to earths early atmosphere?
photosynthsis
Earths early atmosphere was changed dramatically by the evolution of?
photosynthesis
What added oxygen to earths early atmosphere?
Photosynthesis by plants
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