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GLG110 Homework 2-6 1 of 30 Types of unconformities include Nonconformities Disconformities Angular Unconformities All of the above Question 2 of 30 The current theory that we now accept as Plate Tectonics was advanced by Harry Hess J. Tuzo Wilson. Alfred Wegener. James Hutton. Question 3 of 30 The principle of isostasy is based on the idea that Earth’s crust is ________ the mantle Stuck to Resting on Floating on More dense than Question 4 of 30 An S-wave shadow zone extends 180 degrees around the Earth because S-Waves can’t travel through the lower Mantle S-Waves can’t travel through the Inner Core S-Waves can’t travel through the liquid Outer Core S-Waves can’t travel through the solid Outer Core Question 5 of 30 A rock that was cut by a fault is Younger than the fault The same age as the fault Older than the fault Of indeterminate relationship to the fault Question 6 of 30 Metamorphic rocks can form from Sedimentary rocks. Other Metamorphic rocks. Igneous rocks. All of the above Question 7 of 30 Hazards associated with Plate Tectonics include: A) Earthquakes. B) Volcanic eruptions. C) Droughts. D) A and B. Question 8 of 30 Tension leads to Normal Faults. Reverse Faults Strike-slip Faults. Thrust Faults. Question 9 of 30 The principle that states that older rocks are below younger rocks is called the Principle of Superposition Principle of Faunal Succession Principle of Cross-cutting relationships Principle of Original Horizontality Question 10 of 30 Shifting polarity of the Earth’s magnetic field is called Magnetic tectonics A positive anomaly Magnetic auroras Magnetic reversals Question 11 of 30 A landslide is an example of balanced resisting and driving forces. resisting forces overcoming driving forces. friction resisting gravity. driving forces overcoming resisting forces. Question 12 of 30 A mantle plume or hot spot is A place where there is a volcano. a place where hot mantle material rises in a stationary and semi-permanent plume. a place where hot mantle material rises in an always moving, semi-permanent plume. A place where there are mountains. Question 13 of 30 An accretionary wedge forms at a Hot Spot Divergent Boundary Transform Boundary Convergent Boundary Question 14 of 30 How does the lithosphere differ from the asthenosphere? The lithosphere is stronger than the asthenosphere. The asthenosphere is part of the core, while the lithosphere is part of the mantle. The asthenosphere is cooler than the lithosphere. The asthenosphere is much less dense than the lithosphere. Question 15 of 30 How have scientists been able to determine the layers within the Earth? Deep core drilling has extended to deep within the mantle. The layers are inferred from the study of exotic rocks at Earth’s surface and those of large meteorites. The refraction and disappearance of seismic waves provide information about the nature of the different layers and zones. They have been determined by exploring other similar planets. Question 16 of 30 Transform plate boundaries are marked by Stratovolcanoes Plates sliding past each other Deep ocean trenches Two plates moving away from each other Question 17 of 30 The occupants of the island of Japan can expect to experience Shallow, intermediate and deep focus earthquakes Hot spot volcanics Shallow focus earthquakes only, associated with magma movement Paleomagnetic reversals Question 18 of 30 At convergent plate boundaries, The plate of higher density subducts into the mantle. The plate of lower density subducts into the mantle. New oceanic crust is created. Basaltic volcanoes erupt. Question 19 of 30 The Hawaiian Islands chain is oldest to the west and progressively younger to the east. This indicates that the Pacific Plate is moving East West North South Question 20 of 30 Mountains form when Continental crust plows through oceanic crust. Earth wrinkles as it shrinks. The crust is dragged by lunar gravity waves. Continental plates collide. Question 21 of 30 As a mountain chain erodes, Sea level rises as volumes of sediment displace water. The elevation of the mountains may rise due to isostasy. The elevation decreases by the amount of the erosion. The elevation decreases by twice the amount removed by erosion. Question 22 of 30 Which of the following minerals will be most vulnerable to breakdown in the chemical weathering environment? Quartz Clays Gold Feldspar Question 23 of 30 In an ionic bond, Chains or sheets of atoms are held together by weak forces. Atoms are joined by electrical charges. Electrons are shared between all atoms in a solid mass. Electrons are shared between a limited number of atoms. Question 24 of 30 The largest class of minerals is: Carbonates. Sulfides. Silicates. Oxides. Question 25 of 30 The biggest difference between a gabbro and a basalt is Their chemical compositions The temperatures and pressures that generated the magma The size of their crystals The plate tectonic setting in which they form Question 26 of 30 Which of the following rocks will not form at the surface of the Earth? Slate Shale Sandstone Basalt Question 27 of 30 Which of the following is NOT a good test for identifying a mineral? Streak Color Hardness Specific Gravity Question 28 of 30 Subdisciplines in Geology include A) Paleontology B) Chemistry C) Stratigraphy D) A and C Question 29 of 30 If you conduct an experiment and discover that your hypothesis is false, you Construct a new hypothesis. Give up Test again. Ask a different question. Question 30 of 30 A basalt flows across an undulating landscape formed on limestone. The contact will be called a/an Fault Angular unconformity Joint Nonconformity

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