URGENT!! 30 POINTS!!
Most scientists accept the hypothesis that the earliest life forms on earth evolved in an environment quite different from our own. Sort these characteristics based on whether they describe early or modern earth.
-significant amounts of oxygen in the atmosphere
-most of the planet covered in liquid water
-carbon dioxide levels balanced by processes of living organisms
-significant amounts of volatile gases in the atmosphere
-most of the planets water in gaseous form
-large amounts of carbon dioxide in the atmosphere