Mass extinctions have helped create fossils and other historical artifacts that may help scientists come up with when things were around, and what they may have looked like; therefore creating the geologic time sal.
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Sedimentary rocks are rocks composed of sediment. Sediment is deposited in a number of environments of deposition, by both moving air and moving water. Sedimentary rock identification is primarily based on composition. Texture will still be used but in a different sense than for igneous rocks.May 17, 2017
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The driving forces of tectonic plates are related to convection currents in Earth’s <u>mantle</u>..
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c. the professional appearance of the source
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