Put the following Earth events in order, with the OLDEST event FIRST (#1 is the

Question

Put the following Earth events in order, with the OLDEST event FIRST (#1 is the oldest event and #10 is the youngest event) I Choose ] Choose ) Formation of large coal deposits in North America First appearance of stromatolites (produced by mats of cyanobacteria) in the rock record Largest mass extinction in Earth history Laramide Orogeny formed the structure of the present Rocky Mountains Ice sheets covered portions of the Northern Hemisphere and woolly mammoths roamed the land Opening of the North Atlantic Ocean Extinction of the dinosaurs First appearance of shelled organisms in the fossil record First appearance of mammals in the fossil record Final assembly of Pangea and final development of the Appalachian Mountains

Explanation / Answer

1- First appreance of shelled organism in the fossil record

2- Final assembly of pangea anf final development of Appalachain mountains.

3- Formation of large coal deposits in North America.

4- Largest mass extinction in the earth's history

5- First appearnce of the mammals in the fossil record.

6- Extinction of dinosaurs.

7- Laramide orogeny formed the structure of the present rocky mountain.

8-Opening of the north atlantic ocean.

9- First appearance of stromatalities in the rock record.

10- Icesheets covered portion of North hemisphere and wooly mammonths roamed on the land.

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