1) Which most likely formed from magma that cooled and solidified at the slowest rate? a) b) 2) Metamorphic rocks are formed by a) compaction and cementation b) heating and pressure c) erosion and deposition d) melting and solidification 3) Approximately what persentage of the Earth's crust is composed of sedimentary rock? a) 75% b) 5% 4) Fossils of dinosaurs would most likely be found in a) igneous rock b) metamorphic rock c) sedimentary rock 5) Why are the dates more difficult to read on Tombstone A? a) Tombstone A is composed of minerals less resistant to weathering b) Tombstone A experienced cooler temperatures c) Tombstone A was exposed to less acid rain 6) Which process causes fossils to be preserved in rock? a) weathering and erosion b) deposition and cementation c) melting and faulting 7) Which is a likely conclusion that could be made? a) The fossils in rock layer B are older than those in layer C b) The fossils in rock layer D are older than those in layer A c) All the fossils are the same age 8) Which sequence of events occurs in the formation of a sedimentary rock? a) b) 9) Which inference can be correctly made from the diagram? a) The fossils in layer C are older than layer A b) The fossils in layer A are older than layer C c) All fossils are the same age 10) The formation of rock fragments was most likely a result of a) cooling b) melting c) folding d) weathering 11) Which statement best describes the physical weathering shown by the diagram? a) enlargement of the cracks occurs because water expands when it freezes b) the cracks become wider because of chemical reactions between water and the rock 12) The best indicator of an area's ancient environmental conditions and climates would be the a) amount of carbon-14 found in sedimentary layers b) present plant and animal life c) type and distribution of fossils 13) This rock sample would best be classified as a) metamorphic b) sedimentary c) igneous 14) Large crystals in an igneous rock most likely form as a result of the a) cooling rate of the magma b) mineral composition of the magma c) color of the rock 15) In which type of rock are fossils generally found? a) igneous b) metamorphic c) sedimentary

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