MCQ Geology Geological Time Earth’s Internal Structure SET 2ALL MCQ For Geology Geological Time Earth’s Internal Structure 1. Atoms of AA decay to atoms of BB with a half-life of 100,000 years. If there are 20,000 atoms of AA to begin with (and 0 atoms of BB), how long will it take for there to be 2,500 atoms of AA?100,000 years200,000 years300,000 yearsQuestion 1 of 152. Vertebraria is aLeafStemFlowerQuestion 2 of 153. The _________ was an era dominated by the dinosaursPrecambrianPaleozoicMesozoicCenozoicQuestion 3 of 154. Radiometric age is often referred to as __________ age.totalabsolutehistoricgeologicQuestion 4 of 155. The principal of original horizontality states that ________ .most rocks in the Earth's crust are layered horizontallyigneous rocks form essentially horizontal layersmetamorphic gradients are essentially horizontal before deformationsediments are deposited as essentially horizontal layersQuestion 5 of 156. An undeformed sedimentary layer is __________ than the layer above and _______ than the layer below.younger ---youngeryounger --- olderolder --- youngerolder --- olderQuestion 6 of 157. Fossils are most common in which rock types?sedimentaryigneousmetamorphicall of these commonly contain fossilsQuestion 7 of 158. The study of faunal succession allows ___________ .matching of similarly-aged rocks from different outcropsabsolute dating of fossil-bearing stratarecognition of the kings of the beasts in past timesthe study of habits of extinct mammalsQuestion 8 of 159. What is the name for an erosion surface that separates two sets of sedimentary layers with non-parallel bedding planes?cross-beddingformationangular unconformityfaultQuestion 9 of 1510. Radiometric dating is least useful for __________ rocks.graniticbasalticmetamorphicsedimentaryQuestion 10 of 1511. A rock formed with 1,000 atoms of a radioactive parent element, but only contains 250 radioactive parent atoms today. If the half-life is 1,000,000 years, how old is the rock?250,000 years500,000 years1,000,000 years2,000,000 yearsQuestion 11 of 1512. Which of the following will not make a fossil?decomposed organic materialplant impressions (casts)animal footprintsloose animal bonesQuestion 12 of 1513. Who is credited with developing the principle of faunal succession?Charles LyellCharles DarwinWilliam "Strata" SmithJohn C. ButlerQuestion 13 of 1514. Human beings evolved during which geologic era?CenozoicMesozoicPaleozoicPrecambrianQuestion 14 of 1515. Mammals became abundant during the ________Era?CenozoicMesozoicPaleozoicPrecambrianQuestion 15 of 15 Loading...
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