SCIN138 Week 8 Final Exam ALL ANSWERS 100% CORRECR FALL-2021 LATEST GUARANTEED GRADE A+

Question 1 of 50 2.0 / 2.0 Points In the rock cycle, what processes directly link igneous rocks to metamorphic rocks? • A. weathering and erosion • B. recrystallization by high heat and pressure • C. melting and crystallization • D. deposition and lithification • E. compaction and cementation Question 2 of 50 2.0 / 2.0 Points A coarse-grained (phaneritic texture) igneous rock formed . • A. on the surface of the earth in an explosive eruption • B. deep under the surface of the earth • C. due to erosion, frost wedging, and weathering • D. by immense direct pressure and heat • E. on the surface of the earth in a quiet (effusive) eruption Question 3 of 50 2.0 / 2.0 Points Where do we generally find the most quantity of explosive volcanic eruptions? • A. Transform plate boundary • B. Ocean island hotspots • C. Subduction zone boundary • D. Mid-oceanic ridges • E. Divergent plate boundary Question 4 of 50 2.0 / 2.0 Points The number one factor causing landslides is (are) . • A. freeze-thaw cycles • B. precipitation • C. volcanic eruptions • D. earthquakes • E. glaciation Question 5 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 educated guess ; a law that has been universally accepted by the scientific community • C. a tentative untested explanation ; a law that has been universally accepted by the scientific community • D. an objective observation ; an idea that hasn’t been proven • E. an educated guess ; a tentative untested explanation Feedback:01.1 Question 6 of 50 0.0 / 2.0 Points Where would you expect both shallow and deep earthquakes in which the deeper earthquakes are located farther inland? • A. At a convergent plate boundary such as along the west coast of South America. • B. At a transform boundary along the San Andreas fault in California. • C. At a divergent plate boundary in the middle of the Atlantic Ocean. • D. At a divergent plate boundary in the middle of a continental plate such as Africa’s Great Rift Valley. • E. At a transform plate boundary anywhere in the world. Question 7 of 50 2.0 / 2.0 Points Shield volcanoes consist of . • A. Explosive pyroclastic material and low viscosity lava flows. • B. Alternating layers of cinders and ash embedded in silica-rich lava flows. • C. Mostly low viscosity basalt flows with a lower silica content. • D. Alternating layers of silica-rich rocks and intrusive igneous rocks such as basalt. • E. A combination of granitic lava and pyroclastic material with some rhyolite. Question 8 of 50 2.0 / 2.0 Points Where is the top of the asthenosphere closest to the earth’s surface? • A. Underneath a mid-ocean ridge • B. Underneath a collision zone • C. Next to a subduction zone • D. Underneath a transform fault • E. In the center of continental plates (craton) Question 9 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. 12% • B. 1% • C. 88% • D. 50% • E. 99% Question 10 of 50 2.0 / 2.0 Points In terms of groundwater resources, what properties make the best aquifer? • A. High porosity and high permeability • B. High porosity and no permeability • C. High porosity and low permeability • D. Low porosity and high permeability • E. Low porosity and low permeability Question 11 of 50 2.0 / 2.0 Points 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. D • C. C • D. B Question 12 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. sorting ; density • B. particle shape ; trace elements • C. rock type ; rounding • D. particle size ; mineral composition • E. crystalline structure ; sorting Question 13 of 50 2.0 / 2.0 Points What evidence did Alfred Wegener use for his hypothesis of continental drift? • A. paleomagnetic patterns on either side of the mid-oceanic ridge • B. trenches and subduction zones • C. similar rocks and fossils on distant continents • D. mid-oceanic ridges and the age marine rocks • E. earthquake patterns and GPS measurements Question 14 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 magnitude of the earthquake • B. The difference between the amplitude of the seismic waves • C. The transverse nature of the s-wave • D. The time interval between the P and S waves • E. The amplitude of the seismic waves on a seismogram Question 15 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. 1 • B. 2 • C. 10 • D. 100 • E. 0.5 Question 16 of 50 2.0 / 2.0 Points Scientific conclusions are based on . • A. only quantitative data • B. public consensus • C. polling of experts •