AMU ERSC181 WEEK 8 FINAL EXAM FALL 2021

Part 1 of 4 - 50.0/ 52.0 Points Question 1 of 50 2.0/ 2.0 Points When going from a magnitude 5 to a magnitude 6 earthquake on the Richter magnitude scale, what is the increase in seismic wave amplitude?  A. 100  B. 2  C. 0.5  D. 10  E. 1 Week 8 Final Exa AMU ERSC181 WEEK 8 FINAL EXAM FALL 2021 Question 2 of 50 2.0/ 2.0 Points Which of the following surficial processes results in the most poorly sorted sediments?  A. wind  B. rivers  C. deep marine  D. glaciers  E. ocean waves Question 3 of 50 2.0/ 2.0 Points Applying the principles of relative age-dating to the diagram, which of the following is TRUE. Explanation of the diagram: "A" represents an unconformity (erosional surface), "B" is a basaltic dike, "C" is a shale formation, "D" is a sandstone formation, "E" is a limestone formation, "F" represents a thrust fault.  A. A is YOUNGER than C  B. F is YOUNGER than A  C. E is OLDER than B  D. D is YOUNGER than C  E. B is OLDER than F Question 4 of 50 2.0/ 2.0 Points Folds like anticlines and synclines are most associated with _______.  A. Volcanism  B. Tectonic extension  C. Erosion  D. Tectonic shear  E. Tectonic compression Question 5 of 50 2.0/ 2.0 Points The Precambrian Era is the time before abundant multicellular life with hard parts evolved. This time interval represents what percentage of earth’s history?  A. 1%  B. 50%  C. 88%  D. 12%  E. 99% Question 6 of 50 2.0/ 2.0 Points In the scientific method, a hypothesis is _______, and a theory is _________.  A. a tentative untested explanation ; well tested and widely accepted explanation  B. an objective observation ; an idea that hasn’t been proven  C. an educated guess ; a tentative untested explanation  D. a tentative untested explanation ; a law that has been universally accepted by the scientific community  E. an educated guess ; a law that has been universally accepted by the scientific community Feedback: 01.1 Question 7 of 50 2.0/ 2.0 Points James Hutton’s statement that “the present is the key to the past” (uniformitarianism) is demonstrated by ________.  A. the Earth’s landscapes are fixed and have not changed  B. gravity being a recent phenomenon and not changing metamorphic rocks in the past  C. the volcano that erupted last year on August 15 will occur every 10 years on that date  D. ancient sedimentary rocks formed by similar processes as are observed today  E. the fact that our human ancestors hunted dinosaurs for millennia Feedback: 01.3 Question 8 of 50 2.0/ 2.0 Points Which type of faulting is most dangerous in Utah?  A. Thrust  B. Normal  C. Reverse  D. Strike-slip  E. Transform Question 9 of 50 2.0/ 2.0 Points The primary basis for classifying detrital (clastic) rocks is _______, whereas the primary basis for classifying chemical rocks is ________.  A. rock type ; rounding  B. sorting ; density  C. crystalline structure ; sorting  D. particle size ; mineral composition  E. particle shape ; trace elements Question 10 of 50 2.0/ 2.0 Points What information is needed to determine the distance from the epicenter of an earthquake to a seismic receiving station?  A. The time interval between the P and S waves  B. The difference between the amplitude of the seismic waves  C. The magnitude of the earthquake  D. The transverse nature of the s-wave  E. The amplitude of the seismic waves on a seismogram Question 11 of 50 2.0/ 2.0 Points Which of the following is the most significant natural cause of climate change in the last 2 million years?  A. Burning of fossil fuels  B. Photosynthesis  C. Solar flares  D. Volcanic eruptions  E. Milankovitch cycles Question 12 of 50 2.0/ 2.0 Points Refer to the image of a meandering stream shown here. At which site along the stream would stream erosion be the most active?  A. D and B  B. A and C  C. B and C  D. C and D  E. A and E Question 13 of 50 2.0/ 2.0 Points The number one factor causing landslides is (are) _____.  A. precipitation  B. earthquakes