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Layers of the rock

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culiziho's version from 2018-04-09 16:48

Section

Question Answer
Quatinary12th
Tertiary11th
Cretatious10th
Jurrasic9th
memorize
Triassic:8th
Permian:7th

Section2

Carboniferous:6th
Devonian:5th
Suliran:4th
Ordovician:3rd
Cambrian:2nd
Precambrian:1st