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## Earth Science Quiz ### Part 1: Multiple Choice 1. The thinnest layer of the earth is the: - a. inner core - **b. crust** - c. mantle - d. outer core 2. The Himalayan mountains are thought to have been formed by the collision of: - a. two continental plates - b. two tra...

## Earth Science Quiz ### Part 1: Multiple Choice 1. The thinnest layer of the earth is the: - a. inner core - **b. crust** - c. mantle - d. outer core 2. The Himalayan mountains are thought to have been formed by the collision of: - a. two continental plates - b. two transform faults - c. two oceanic plates - **d. an oceanic plate and a continental plate** 3. Subduction is: - **a. where denser plates sink into the mantle** - b. where ridge valleys form - c. occurring mostly in the Atlantic Ocean - d. occurring where continental plates diverge 4. What are the two types of crust? - a. thick and thin - **b. continental and oceanic** - c. ocean and basin - d. lower and upper 5. What drives tectonic plate movement? - a. magnetic field - b. gravity - **c. convection currents** - d. pressure 6. What do transform plate boundaries create? - a. hurricanes - b. portal to purgatory - **c. trenches** - d. earthquakes 7. Rising magma that results from subduction may produce: - a. fossil layers - b. sea-floor spreading - **c. volcanic island arcs** - d. deep-sea sediment 8. How do scientists use sound waves to figure out the shape of the ocean floor? - **a. the longer it takes a sound wave to return to the ship, the deeper the water is** - b. the longer it takes a sound wave to return to the ship, the more shallow the water is - c. the longer it takes a sound to return to the ship, the colder the water is - d. the less time it takes a sound wave to return to the ship, the deeper the water is 9. What two specific continents fit together most noticeably? - a. Antarctica and Africa - **b. South America and Africa** - c. Africa and North America - d. South America and Europe 10. Which statements below best explains Wegner's hypothesis of continental drift? - a. Volcanic activity slowly reshapes the continents throughout the earth's geologic history - b. The continents shift locations as a result of major catastrophe like meteorite impacts and earthquakes - c. The continents rapidly change places from one hemisphere to another when Earth's magnetic field reverses. - **d. The continents were once part of the same landmass and have drifted very slowly to their current positions.**