Definition of RockCategorized under "General"
Definition as written by IRFAN_LODHI:
In (Geology) rock :is a naturally occurring solid aggregate of minerals and or mineraloids.
The Earth's outer solid layer, the (Lithosphere) is made of rock. In general rocks are of three types, namely :
1: igneous rock
2: sedimentary rock
3: metamorphic rock
The scientific study of rocks is called (Petrology) .
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