NC Geologic History Recap

Explore NC's geologic past: Earth's birth, mountains, rocks, and early people!

Use this link to answer the following multiple choice questions:How long ago was Earth formed? 4.5 million years ago 4.5 thousand years ago 4.5 billion years ago Land masses broke apart, came together, and then broke apart again. What famous mountain chain formed as a result of this? Sierra Nevada Mountains Appalachian Mountains Blue Ridge Mountains What 2 agents of erosion began to wear down the mountains? wind and gravity wind and water heat and pressure What is the process where rocks are worn down by wind, water, ice, or gravity? erosion metamorphism transportation Shorelines of the eastern coast were affected polar ice caps melting, freezing, and then remelting. What part of N.C. did this cover and uncover? Piedmont Mountains Coastal Plains When did the first humans arrive in N.C.? 10,000 years ago 1,000 years ago 10 years ago Rock Cycle Word Bank-solidification-heat and pressure (use twice)-weathering and erosion (use 3 times)-melting (use twice)-magma-igneous rock-sedimentary rock-metamorphic rock-compaction-sediment solidification melting magma metamorphic rock sediment weathering and erosion igneous rock compaction weathering and erosion heat and pressure melting sedimentary rock heat and pressure weathering and erosion To mark a word click its first letter then click its last. CEMENTATION METAMORPHIC SEDIMENTARY COMPACTION WEATHERING ROCKCYCLE SEDIMENT IGNEOUS MELTING EROSION