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What is the difference between correlation and causality?
Stromatolites
Layered sedimentary formations created by the growth of microorganisms, representing some of the oldest evidence of life on Earth.
Oxygen-rich Atmosphere
An atmospheric condition where there is a high concentration of oxygen, significant for sustaining aerobic life forms.
Great Dying
An event at the end of the Permian period, about 252 million years ago, where there was a massive extinction of species.
Meteorite Impact
The collision of a meteorite with the Earth, creating craters and sometimes affecting climate and biological evolution.
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