"Rocks. Essential Points. Sedimentary rocks tell us about earth's past surface
environment; Igneous and Metamorphic rocks tell us about earth's internal ..."
https://www.uwgb.edu/dutchs/EarthSC102PowerPoint/102Rocks.ppt
"Rocks. Essential Points. Sedimentary rocks tell us about earth's past surface
environment; Igneous and Metamorphic rocks tell us about earth's internal ..."
https://www.uwgb.edu/dutchs/EarthSC102PowerPoint/102Rocks.ppt
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