Matthew Wittig Mjw5559@psu.edu Geosc 10 Extra Credit Bold Answers indicate Correct Answers Unit 2 - Plate Tectonics 1 1) Death Valley, located in Sierra Nevada, an example of a: a) Full-Apart Fault b) Push-together Fault c) Sliding-Apart Fault d) Sub-duction Fault Answer: Located in section 2.1, subheading: Pull-Apart Faults 2) Within the Earth there is heating. During this heating, almost all material expands, because hotter molecules vibrate more rapidly and bounce farther away from each other. a) True b) False Answer: Located in section 2.1, subheading: Heat Inside the Earth 3) During the process of convection a) Material that is heated rises, along with material that is cool b) Material that is cool rises, and material that is heated sinks c) Material that is heated rises, and material that is cool sinks d) Material that is cool and material that is heated both sink Answer: Located in section 2.1, subheading: Heat Inside the Earth 4) The order of the Earths layers from the center of the earth outwards is: a) Lithosphere, Asthenosphere, outer core, inner core b) Lithosphere, Outer core, Inner core c) Outer core, inner core, lithosphere, asthenosphere d) Inner core, Outer core, Asthenosphere, Lithosphere Answer: Located in section 2.1, subheading: Heat Inside the Earth 5) Earthquakes with a magnitude of 3 shakes the ground how much more than an Earthquake with a magnitude of 2? a) 100 times b) 1 time c) 10 times d) 1000 times Answer: Located in section 2.2, subheading: Size of Earthquakes Unit 3 – More Plate Tectonics 1) Almost all volcanoes include one of the following: a) Pull-Apart margins, push-together subduction zones, hot spots b) Hot spots, push-together subduction zones, slide-past zones 2) 3) 4) 5) c) Slide-past zones, hot spots, earthquakes d) Earthquakes, pull-apart margins, push-together subduction zones Answer: located in section 3.3, subheading: Types of Volcanoes What is the most active of the Cascade Volcanoes over most recent centuries? a) Midway volcano b) Aleutain volcano islands c) Mt. Saint Helens d) Liohi Seamount Answer: Located in Section 3.3, subheading: Mt. St. Helens and Volcanic Hazards, More to Worry About Subduction is when cold, dense seafloor sinks beneath the mantle a) True b) False Answer: located in section 3.1, subheading: Ring Of Fire Seafloor is composed of a kind of rock that is made from melting a little bit of the deep, convecting rocks of the Earth’s mantle and then letting that rock float to the surface and “freeze.” What is this rock called? a) Ingenious b) Basalt c) Granite d) Magma Answer: located in section 3.1, subheading: Ring of Fire How many large plates is the lithosphere broken into? a) Eight b) Seven c) Six d) Eleven Answer: located in section 3.2, subheading: The Olympic Grocery Unit 4 – Introducing Mountain Building, Obduction & Tsunamis 1) The Great Smoky Mountains National Park; Cades Cove, is an example of what? a) Push-together faults b) Pull-apart faults c) Slide-past faults d) Pull-together faults Answer: located in section 4.1, subheading: Obduction Zones- The Push-Together Boundaries 2) Within the Great Smoky Mountains National Park; Cade’s Cove displays how older rocks sit on top of younger rocks a) True b) False Answer: located in section 4.1, subheading: Obduction Zones- The Push-Together Boundaries 3) In “slide-past” faults, faults occur when stresses run parallel to each other. a) True b) False Answer: Located in section 4.1, subheading: The Three Structural types 4) About how fast can Tsunamis move across the deep ocean? a) 100-200 miles per hour b) 300-500 miles per hour c) 10-12 miles per hour d) 30-50 miles per hour Answer: located in section 4.2, subheading: Where Tectonics Meet People: Tsunamis 5) In the developed world, only 1% of us die in “accidents.” Although the tragic Indian Ocean Tsunami of 2004, which was triggered by the second largest earthquake ever recorded killed how many people? a) 1,000,000 b) 3,000,000 c) 100,000 d) 300,000 Answer: located in section 4.2, subheading: Where Tectonics Meet People: Tsunamis Unit 5 – Tearing Down Mountains: Weathering, Mass Movement, & Landslides 1) Air is cooled by two major ways, those ways are: a) By losing energy to its surroundings, or by being lifted b) By large fans that blow on the earth from space, and ice cubes in the water c) By gaining energy to its surroundings, and falling closer to the water d) By being lifted, and by gaining energy to its surroundings Answer: Located in section 5.1, subheading: Heating Death Valley 2) Warm air holds less moisture than cool air a) True b) False Answer: Located in section 5.1, subheading: Heating Death Valley 3) Mechanical Weathering includes all of the following except: a) Growth of things in cracks (tree roots, minerals) b) Expansion and breakage of rocks as the weight of overlying rock is removed during erosion of that overlying rock c) Animals (such as worms) breaking down the rocks d) Mountain-building stresses, or earthquake-release stresses, breaking the rocks Answer: Located in Section 5.2, subheading: Mechanical Weathering 4) Granite is composed of four minerals, which one is not one of those minerals a) Quartz b) Potassium feldspar and sodium-calcium feldspar c) Carbon d) Dark silica bearing mineral containing iron and magnesium Answer: Located in section 5.2, subheading: chemical Weathering 5) The total offset of the fault located at the Grand Tetons National Park, Wyoming is about how long? a) 6 miles b) 10 miles c) 1 mile d) 500 feet Answer: Located in section 5.3, subheading: Another Reason why loose rock matters: Mass Movement and the Grand Tetons Unit 6 – More on Tearing Down Mountains: Groundwater and Rivers 1) The Water table… a) Rises as then rain fills it like a sponge b) Sinks as the rain fills it like a sponge c) Rises as the rain exits it and drains to the stream d) Is located above the surface Answer: Located in section 6.1, subheading: Rain, Rocks, and Rivers 2) In a meandering river, the stream will race around obstacles and erode the outside of the curve and in doing-so the bend will grow. a) True b) False Answer: Located in section 6.1, subheading: Rain, Rocks, and Rivers 3) Dams will stop the flow of water, but they will allow the flow of all sediment through them a) True b) False Answer: Located in section 6.1, subheading: Rain, Rocks, and Rivers 4) What occurs in the original stream bed after a dam is constructed? a) Erosion b) Sediment Build-up c) Floods d) Nothing Answer: Located in section 6.1, subheading: Rain, Rocks, and Rivers 5) Natural Levees build up mud, but not enough that the mud is higher than the Flood Plains. a) True b) False Answer: Located in Section 6.2, subheading: Wrestling with Mud