StudentsSpeak #2_ Do before you begin unit 1_ GEOSC 10 (SP 24 MERGED)_ Geology of the National Parks

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Pennsylvania State University *

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010

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Geography

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Apr 3, 2024

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StudentsSpeak #2: Do before you begin unit 1 Due Jan 17 at 11:59pm Points 1 Questions 5 Available Jan 15 at 12am - Jan 24 at 11:59pm Time Limit None Instructions This quiz was locked Jan 24 at 11:59pm. Correct answers are hidden. Score for this survey: 1 out of 1 Submitted Jan 15 at 11:27am This attempt took 7 minutes. Question 1 0 / 0 pts You Answered I know what is required each week; it's right there on the calendar when I log on to Canvas, in plain black-and-white (sometimes even with red highlights). I'm not quite sure what is required although I have a clue; what calendar are you talking about? Nothing is clear; what calendar are you talking about? Question 2 0 / 0 pts Hi Geosc-ers! This survey asks for your opinion in two general areas; 1. Your reaction to your course experience so far 2. Your reaction to natural disasters such as Earthquakes I'll look forward to sharing the class's perspectives with you in an upcoming email. Have a good Unit 2 experience! So far in this class: Death Valley National Park contains the point with the lowest surface elevation in the Western Hemisphere, and from that point you can look over two miles upward to the peaks of the Sierra Nevada. Why is Death Valley so deep?
The valley was eroded by a great river. The valley was scoured by a huge glacier. The valley was blasted clean by tremendous winds. The valley was dropped along immense earthquake faults. You Answered The valley collapsed into colossal caves eaten out below it by groundwater. Question 3 0 / 0 pts Something must be wrong with the data presented—an increase in magnitude of just one point shouldn’t lead to so much more loss of life. Construction must have gotten a lot better so that modern buildings stand up better than old ones. It's a logarithmic scale, and a magnitude-8 moves the ground 10 times more than a magnitude-7 does, so the magnitude-8 is much more efficient at breaking buildings than a magnitude-7. You Answered Really, B and C both contain accurate information—a magnitude-8 quake does move the ground 10 times more than a 7 does, breaking buildings more efficiently, and modern California buildings really are more earthquake-resistant than the buildings in that part of China in the 1500s. (Note that most countries including the US still have buildings in some places that are not built to survive earthquakes.) Question 4 0 / 0 pts The earth is crinkling up as it cools, and sometimes it breaks. You Answered The crust of the earth is slowly slipping toward the equator from the centrifugal force of the earth's rotation, and the quakes happen as the pieces pile up. The most damaging earthquake, in terms of human lives lost, was in China in the 1500s; recent estimates put loss of life at close to 1 million people. That was a magnitude 8 earthquake. The San Francisco-area Loma Prieta “World Series” earthquake of October, 1989 killed 63 people, and was a magnitude 7 earthquake. What is a reasonable interpretation of this? Why do most earthquakes happen, anyway?
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