1) What is the larges division of geologic time? a) Eons b) Centuries c) Decades d) Millenia 2) What process breaks down rocks with ice, wind, or water? a) Mechanical Weathering b) Chemical Weathering c) Decomposition d) Burning 3) The uppermost rigid part of the crust a) Lithosphere b) Tectonic Plates c) Mantle d) Core 4) The only liquid layer in Earth a) Mantle b) Crust c) Troposhpere d) Atmosphere 5) The system used to sort the general categories of Earth's geologic history a) Geological Time Scale (GTS) b) Periodic Table c) Food Chain d) Venn Diagram 6) What process breaks down rocks through chemical reactions? a) Chemical weathering b) Erosion c) Oxidization d) respiration 7) A subdivision of a geological time a) Epoch b) Eon c) Era d) Century 8) A species that is no longer alive is... a) Extinct b) Endangered c) Flourishing d) Migrating 9) Someone who studies fossils a) Paleontologist b) Doctor c) Scientist d) Chemist 10) The time required for half of the atoms in a piece of radioactive matter to decay a) Half-life b) Full-life c) Decomposition d) The Carbon Cycle

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