17.  Earth’s inner core is...*1 pointa dense ball of solid metal.a layer of molten metal.a layer of hot rock.a layer of rock that forms Earth’s outer skin.18.  According to the theory of plate ____________________, Earth’s plates move very slowly in various directions.*1 pointAbrasionTectonicsLong shore DriftLithosphere19.  Scientists think that the ____________________, made of iron and nickel, moves to produce Earth’s magnetic field.*1 pointInner CoreOuter CoreAbrasionTectonics20.    Which layer of the earth is completely Liquid?*1 pointCrustOuter CoreMantleInner Core

Question 7 of 15Match the layer of the Earth in column 1 to the characteristics in column 2.Outer coreInner coreUpper mantleLower mantle?Near outer core?Dense and solid?Liquid?Moves the crust

14.  What is the correct order (starting from the surface) of Earth’s layers?*1 pointmantle, outer core, inner core, crustcrust, outer core, inner core, mantleouter core, inner core, crust, mantlecrust, mantle, outer core, inner core15.  Which of Earth’s layers is the thickest?*1 pointthe crustthe outer corethe inner corethe mantle16.  Which part of Earth contains most of its mass?*1 pointBiosphereGeosphereHydrosphereAtmosphere

5.  Which is a layer of molten iron and nickel that surrounds the inner core of Earth?*1 pointOuter CoreInner CoreSeismic WavesMechanical Waves

12.  What is a rigid layer made up of the uppermost part of the mantle and the crust?*1 pointLithosphereBiosphereAstenosphereSphere

11.  What are sections of the Earth's crust that move due to convection currents?*1 pointSeismographConvection CurrentTectonic PlatesLithosphere