APUS_ERSC181_WEEK_8_FINAL_EXAM_96% CORRECT FALL-2022 LATEST SOLUTION GUARANTEED GRADE A+

Question 1 2/2 points Pyroclastic flows are more associated with _. ocean hot spots shield volcanoes flood basalts cinder cones Question 2 2/2 points In the rock cycle, what processes directly link igneous rocks to metamorphic rocks? compaction and cementation melting and crystallization deposition and lithification weathering and erosion Question 3 2/2 points The primary basis for classifying detrital (clastic) rocks is , whereas the primary basis for classifying chemical rocks is _. rock type ; rounding sorting ; density particle shape ; trace elements crystalline structure ; sorting Question 4 2/2 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? 99% 12% 1% 50% Question 5 2/2 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? 1 0.25 3 0.5 Question 6 2/2 points In the scientific method, a hypothesis is _ , and a theory is _ __. an educated guess ; a law that has been universally accepted by the scientific community an objective observation ; an idea that hasn't been proven an educated guess ; a tentative untested explanation a tentative untested explanation ; a law that has been universally accepted by the scientific community Question 7 2/2 points In terms of groundwater resources, what properties make the best aquifer? High porosity and low permeability Low porosity and low permeability High porosity and no permeability Low porosity and high permeability Question 8 2/2 points James Hutton's statement that "the present is the key to the past" (uniformitarianism) is demonstrated by _ _ . the fact that our human ancestors hunted dinosaurs for millennia the volcano that erupted last year on August 15 will occur every 10 years on that date the Earth's landscapes are fixed and have not changed gravity being a recent phenomenon and not changing metamorphic rocks in the past Question 9 2/2 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. D is YOUNGER than C F is YOUNGER than A A is YOUNGER than C B is OLDER than F Question 10 2/2 points Which of the following surficial processes results in the most poorly sorted sediments? wind deep marine ocean waves rivers Question 11 2/2 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 B C Question 12 2/2 points Where is the top of the asthenosphere closest to the earth's surface? Underneath a collision zone Next to a subduction zone In the center of continental plates (craton) Underneath a transform fault Question 13 2/2 points The number one factor causing landslides is (are) ___ . earthquakes freeze-thaw cycles volcanic eruptions glaciation Question 14 2/2 points What evidence did Alfred Wegener use for his hypothesis of continental drift?