ch21 - MULTIPLE CHOICE. Choose the one alternative that...

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Unformatted text preview: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) As sediments settle in an ocean, bay, or lake, they are laid down in an even, horizontal manner, which illustrates the principle of 1) _______ A) succession. B) conform ity. original horizontality. D) superpo sition. 2 ) Deposition of sediment with each new layer younger than the layer below is referred to as the principle of 2) _______ A) h o r i z o n t a lity an d no nc onf or mit y. o ri g inal horizonta lity. nonconformity. D) superposition. 3) In a thick bed of sedimentary rocks we find an igneous dike. The order of formation is 3) _______ A) together. B) unknow n. igneous before sedimentary. D) sedimen tary before igneous. 4 ) In a sequence of rock layers we find trilobite and dinosaur fossils. The dinosaur fossils are at the bottom of the rock sequence and the trilobites are at the top. This sequence tells us that 4) _______ A) t h e b e ds are ov ert urn ed. t h e beds are folded. dinosaurs are older than trilobites. D) trilobites survived the age of the dinosaurs. 5) In a sequence of rock layers we find fossils of trilobites and dinosaurs. The trilobite is at the bottom of the rock sequence in layer 1. The dinosaur fossils are found in layer 2, directly above the trilobite fossils. We conclude that 5) _______ A) t r i l o b i t e s s u r viv ed up to the tim e of the din osa urs . t h e p r o c e s s e s o f erosion have created a gap between the age of the trilobite and the age of the dinosaur. the beds are overturned. D) dinosaurs fed on trilobites. 6) Fossils are found in 6) _______ A) s e d i m e n t a r y an d so me me ta mo rph ic roc ks. m et amorphic rock. igneous rocks. D) sedimentary rocks. 7) In a sequence of rock layers we find fossils of trilobites and dinosaurs. The trilobites are found at the bottom of the rock sequence in layer 1. The dinosaur fossils are found in layer 2, directly above the trilobite fossils. There are inclusions of trilobite fossils in layer 2. We conclude that 7) _______ A) d i n o s a u r s w e r e e x tin ct lon g bef ore tril obi tes ca me int o exi ste nce . t h e r e is no time gap between the rocks. dinosaurs are from the Cambrian Period. D) by inclusion and faunal succession, layer 1 is older than layer 2. 8) The principle of superpositio n states that the top layer of rock is 8) _______ A) the youngest. B) igneous. B) igneous....
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ch21 - MULTIPLE CHOICE. Choose the one alternative that...

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