1A Lecture Quiz
Tectonic plates move at rates that are approximately __________. a.) 1 to 5 cm every 1,000 years b.) 1 to 15 cm/year c.) 1 to 15 m/year d.) 10 to 100 m/year
b.) 1 to 15 cm/year
All lithospheric plates are approximately the same size and contain a combination of oceanic and continental crust. a.) True b.) False
b.) False
The asthenosphere lies partly within the outer core: a.) True b.) False
b.) False
Which of the following is NOT part of the lithosphere? a.) oceanic crust b.) asthenosphere c.) continental crust d.) mantle lid e.) all are part of the lithosphere
b.) asthenosphere
How can damage and injury be minimized in areas prone to seismic activity? a.) earthquake zoning for buildings b.) engineering/construction controls c.) warning systems so people have time to take cover during an EQ event d.) All of the above are correct.
d.) All of the above are correct.
Earthquakes are a result of __________. a.) A sudden change in atmospheric pressure b.) mantle upwelling c.) erosion d.) lithosphere-plate movement
d.) lithosphere-plate movement
The largest portion of Earth's volume is: a.) inner core b.) outer core c.) crust d.) mantle
d.) mantle
A major cause of death and damages during earthquakes results from the collapse of buildings. a.) True b.) False
a.) True
All else being equal, an earthquake that strikes in the eastern United States would produce shaking that would be felt __________ than one that occurred in the western United States. a.) over a greater distance b.) over a lesser distance c.) over the same distance
a.) over a greater distance
At transform boundaries: a.) Plates slide past one another along the surface of the earth. b.) Plates are moving away from each other. c.) Plates are moving towards each other.
a.) plates slide past one another along the surface of the earth.
Slab pull occurs because subducting slabs are __________. a.) Less mafic, and therefore less dense, than surrounding asthenosphere b.) Cooler, and therefor more dense, than surrounding asthenosphere c.) Hotter, and therefore more , than surrounding asthenosphere d.) Cooler, and therefore less dense, than surrounding asthenosphere
b.) cooler, and therefore more dense, than surrounding asthenosphere
Seismic retrofitting is the process of __________. a.) predicting earthquakes b.) strengthening existing buildings and structures c.) mapping areas prone to earthquakes d.) releasing energy
b.) strengthening existing buildings and structures
Which of the following statements about the lithospheric plates is correct? a.) Plates are the same thing as continents and the plate boundaries are always the continental edges. b.) Plates consist of either oceanic lithosphere of continental lithosphere but not both. c.) Plates can be a combination of oceanic and continental lithosphere, but there are some plates that do not contain continental lithosphere. d.) Most geologic activity occurs in the middle of the plates.
c.) Plates can be a combination of oceanic and continental lithosphere, but there are some plates that do not contain continental lithosphere.
Oceanic and continental crust differ in: a.) composition b.) density c.) all of the above
c.) all of the above
What is the map location of an earthquake called? (The location on the surface of the earth) a.) focus b.) ground zero c.) epicenter d.) nexus
c.) epicenter
The theory of plate tectonics _______________. a.) incorporates continental drift but not sea-floor spreading b.) incorporates sea-floor spreading but not continental drift c.) incorporates and explains both sea-floor spreading and continental drift d.) does not incorporate sea-floor spreading or continental drift
c.) incorporates and explains both sea-floor spreading and continental drift
Wet, sandy ground is susceptible to __________ during an earthquake. a.) displacement b.) collapse c.) liquefaction d.) faulting
c.) liquefaction
What force is thought be a partial cause of plate tectonic motion? a.) earth tides b.) earthquakes c.) mantle convection currents d.) shear strain
c.) mantle convection currents