the three main types:
igneous, metamorphic, and sedimentary.
their classification is based on characteristics like chemical composition, texture, particle size, or (mainly) how they were formed.
Answer:
Scientists classify rocks into three different types. The main basis for the classification they chose is according to characteristics such as mineral , chemical composition, permeability, texture of the constituent particles and particle size.Nov 16, 2018
Explanation: hope this helped!