Which is a process involved in the formation of sedimentary rock? extrusion intrusion compaction

COMPACTION.

Sedimentary rock is a rock formed by layers of sediments settling down together forming one solid rock.

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Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the