Based on the current position of the continents, in what general direction did South America drift away from Pangaea? North false South false East false West true Single What evidence did Alfred Wegener use to support his theory of continental drift? Fossil discoveries true The Himalaya Mountains false Ancient maps of the world false Charts of seismic activity false Single What is true of tectonic plates? They are constantly moving true Earthquakes cause them to move false They don't move for centuries at a time false There are fewer and fewer of them false Single Where is Earth's heat energy most concentrated? The mantle false The lithosphere false The core true The crust false Single Which of the following best describes the location of the mantle? Above the crust false Between the crust and the lithosphere false Between the crust and the core true Beneath the core false Single What is the underlying force that drives plate tectonics? Ocean tides false Volcanic eruptions false The rock cycle false Convection currents true Single Which of the following is true of Earth's landmasses? They are the upper part of the crust true They are made of a single tectonic plate false They are the densest part of the crust false They were formed by earthquakes false Single Convection currents are powered by: Motion false Pressure false Heat true Density false Single Which of the following plate interactions is most likely to form a mountain range? A transform boundary between ocean plates false A transform boundary between continental plates false A convergent boundary between continental plates true A subduction zone between a continental plate and an ocean plate false Single When two plates that differ in _______ collide, volcanoes often form nearby. Speed false Density true Thickness false Temperature false Single