A) long deep-ocean trenches. B) found in all of Earth's ocean's. C) located along the coast. D) found only in the Pacific Ocean.
A) Earth's magnetic field. B) convection currents. C) earthquakes. D) conduction.
A) divergent boundary. B) rift valley. C) convergent boundary. D) transform boundary.
A) Q waves B) secondary waves C) primary waves D) Surface waves
A) surface waves B) s waves C) p waves. D) rift valley.
A) It is a good source of energy. B) It is probably ready to erupt. C) It is extinct. D) It is dormant.
A) The Mercalli scale rating. B) The location of the focus. C) The location of the epicenter. D) The vibrations caused by seismic waves.
A) crust, mantle, outer core, inner core B) outer core, mantle, inner core , crust C) mantle, core, crust, inner core D) crust, outer core, mantle, inner core
A) rock. B) volcanic ash. C) fire. D) magma.
A) rift valley. B) transform boundary. C) convergent boundary. D) divergent boundary.
A) conduction. B) subduction. C) convention. D) continental drift.
A) along mid-ocean ridges. B) along the edge of the continents. C) at the north and south poles. D) along the edges of the coast.
A) q waves. B) p waves. C) surface waves. D) s waves.
A) trenches. B) rifts. C) valleys. D) mountains.
A) sea-floor spreading B) plate tectonics. C) boundary. D) subduction.
A) they have too much data. B) they can't be sure of when or where the stress will be released along the fault. C) they don't know what an earthquake is. D) there are too many faults to monitor.
A) the name of the supercontinent that is believed to have existed millions of years ago. B) the name of an ancient fossil. C) name of a continent. D) the name of a scientist.
A) a layer of cooled rock. B) empty. C) layer of hot magma. D) a dense ball of iron and nickel. |