What do fossils tell us about the past? which of the following occurred as ancient climate changed?
a. during very warm periods, sea levels are very high.
b. during very cold periods, sea levels were very high.
c. since the eocene, there has been a general cooling of earth’s surface temperature.
d. one of the most profound temperature changes, and thus dramatic alterations of climate and habitat, began at the end of the miocene, around 6 mya.
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