SCIN 138 Week 8 Final Exam 2023 | SCIN 138 INTRODUCTION TO PHYSICAL GEOLOGY

SCIN 138 Week 8 Final Exam 2023 | SCIN 138 INTRODUCTION TO PHYSICAL GEOLOGY. 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?  A. 1  B. 0.5  C. 2  D. 0.25  E. 3 Question 8 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. 2  B. 0.5  C. 10  D. 100  E. 1 Question 9 of 50 2.0/ 2.0 Points Folds like anticlines and synclines are most associated with _______.  A. Tectonic shear  B. Volcanism  C. Erosion  D. Tectonic extension  E. Tectonic compression Question 10 of 50 2.0/ 2.0 Points In terms of groundwater resources, what properties make the best aquifer?  A. High porosity and no permeability