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StuAzole

Duke status
Jan 22, 2016
30,139
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GromsDad said:
Where did the oxygen come from?
Click to expand...
God created it 6000 years ago.

Or, from the great oxygenation period, about 2 billion years after the earth formed, producing oxygen at a level about 10% of today’s oxygen levels. It was until about 450,000,000 years ago that plants sprouted and started producing oxygen to levels necessary to allow mammals to evolve.
 
GromsDad

GromsDad

Duke status
Jan 21, 2014
56,651
18,765
113
West of the Atlantic. East of the ICW.
StuAzole said:
God created it 6000 years ago.

Or, from the great oxygenation period, about 2 billion years after the earth formed, producing oxygen at a level about 10% of today’s oxygen levels. It was until about 450,000,000 years ago that plants sprouted and started producing oxygen to levels necessary to allow mammals to evolve.
Click to expand...
What mechanism produced the first oxygen.
 
afoaf

afoaf

Duke status
Jun 25, 2008
50,048
23,791
113
StuAzole said:
Until about 800,000 years ago there was basically no free oxygen in the atmosphere.

Climate didn’t support human civilization until about 12,000 years ago.

So the remaining 4+ billion years were not really good times for life as we know it.
Click to expand...
MEGA!

Make Earth Great Again
 
Chocki

Chocki

Rabbitt Bartholomew status
Feb 18, 2007
7,794
9,046
113
Planet Earth
I think it would be dank if the Earths climate reverted back to being able to support wicked dangerous prehistoric megafauna again.


Everyone be all like why isn’t @afoaf posting anymore on the erBB and someone else be all like bro you didn’t hear??? Fucking giant bird attacked him in a Home Depot parking lot and now he’s in the hospital with a cranial fracture

1721867859438.png
 
Last edited:
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Lance Mannion

Lance Mannion

Duke status
Mar 7, 2009
26,924
2,827
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In Gods Country
Chocki said:
I think it would be dank if the Earths climate reverted back to being able to support wicked dangerous prehistoric megafauna again.


Everyone be all like why isn’t @afoaf posting anymore on the erBB and someone else be all like bro you didn’t hear??? Fucking giant bird attacked him in a Home Depot parking lot and now he’s in the hospital with a cranial fracture

View attachment 186536
Click to expand...
Imagine how people a Gigantus Chickinus would feed.
 
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