SCIN 138 Week 8 Final Exam 2023

SCIN 138 Week 8 Final Exam 2023. SCIN 138 INTRODUCTION TO PHYSICAL GEOLOGY. Which of the following surficial processes results in the most poorly sorted sediments?  A. rivers  B. glaciers  C. ocean waves  D. deep marine  E. wind Question 2 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 amplitude of the seismic waves on a seismogram  B. The magnitude of the earthquake  C. The difference between the amplitude of the seismic waves  D. The time interval between the P and S waves  E. The transverse nature of the s-wave Question 3 of 50 2.0/ 2.0 Points In the rock cycle, what processes directly link igneous rocks to metamorphic rocks?  A. recrystallization by high heat and pressure  B. compaction and cementation  C. deposition and lithification  D. melting and crystallization  E. weathering and erosion Question 4 of 50 2.0/ 2.0 Points A coarse-grained (phaneritic texture) igneous rock formed _________________.  A. on the surface of the earth in a quiet (effusive) eruption  B. by immense direct pressure and heat  C. due to erosion, frost wedging, and weathering  D. on the surface of the earth in an explosive eruption  E. deep under the surface of the earth Question 5 of 50 2.0/ 2.0 Points Where is the top of the asthenosphere closest to the earth’s surface?  A. Underneath a transform fault  B. In the center of continental plates (craton)  C. Next to a subduction zone  D. Underneath a mid-ocean ridge  E. Underneath a collision zone Question 6 of 50 2.0/ 2.0 Points Scientific conclusions are based on _____________.  A. public consensus  B. only quantitative data  C. subjective evidence and ancient books  D. polling of experts  E. objective evidence and experiments Feedback:01.2 Question 7 of 50 2.0/ 2.0 Points When the radiometric clock starts ticking in zircon minerals, there is only 100% of the unstable radiometric parent isotope X and 0% of the stable daughter isotope Y. After testing in a lab millions of years later, there is 25% of the parent radiometric isotope and 75% of the daughter isotope. How many half lives have elapsed?