The early paleocene world was slightly then the proceeding cretaceous period cooler warmer less evolved none of the above

The answer is 'cooler'. The Cretaceous Period was relatively warm and was experiencing global warming. However, a cooling trend was evident towards the end of the Cretaceous. The Paleocene followed the meteorite impact that resulted in the extinction of most of the dinosaurs. It is thought that dust particles in the atmosphere resulted in cooling during the early Paleocene.

chemical because it warmed up which involves temperature and it bubbled which includes changing

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