SCIN138 WEEK 8 FINAL EXAM 2023 – Questions and Answers Rated A+

SCIN138 WEEK 8 FINAL EXAM 2023 – Questions and Answers Rated A+. Which best explains the processes at the mid-oceanic ridge? A. Plates diverge creating new crust B. Plates converge destroying old crust C. Plates diverge destroying old crust D. Plates converge creating new crust E. Plates slide past each other destroying old crust Question 2 of 50 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 2/18 2.0/ 2.0 Points 2.0/ 2.0 Points 2.0/ 2.0 Points B. A and C C. B and C D. C and D E. A and E Question 3 of 50 In the scientific method, a hypothesis is _______, and a theory is _________. A. an educated guess ; a law that has been universally accepted by the scientific community B. a tentative untested explanation ; well tested and widely accepted explanation 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 objective observation ; an idea that hasn’t been proven Feedback: 01.1 Question 4 of 50 In the rock cycle, what processes directly link igneous rocks to metamorphic rocks? A. compaction and cementation B. melting and crystallization C. weathering and erosion D. recrystallization by high heat and pressure E. deposition and lithification Question 5 of 50 The primary basis for classifying detrital (clastic) rocks is _______, whereas the primary basis for classifying chemical rocks is ________. A. crystalline structure ; sorting B. particle shape ; trace elements 3/18 2.0/ 2.0 Points 2.0/ 2.0 Points 2.0/ 2.0 Points C. sorting ; density D. particle size ; mineral composition E. rock type ; rounding Question 6 of 50 Where is the top of the asthenosphere closest to the earth’s surface? A. In the center of continental plates (craton) B. Underneath a collision zone C. Next to a subduction zone D. Underneath a transform fault E. Underneath a mid-ocean ridge Question 7 of 50 In terms of groundwater resources, what properties make the best aquifer? A. Low porosity and high permeability B. High porosity and high permeability C. Low porosity and low permeability D. High porosity and no permeability E. High porosity and low permeability Question 8 of 50 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. 12% B. 1% C. 88% D. 50% 4/18 2.0/ 2.0 Points 2.0/ 2.0 Points E. 99% Question 9 of 50 The map below shows continental land as green and brown, the depth of the ocean floor in blue, and tectonic plate boundaries as colored lines. Evaluate this geologic evidence to determine which location would most likely require adequate tsunami preparedness. A. A B. C C. D D. B Question 10 of 50 Which of the following is the most significant natural cause of climate change in the last 2 million years? A. Photosynthesis B. Volcanic eruptions C. Burning of fossil fuels D. Milankovitch cycles