10.  What are circular currents in the mantle caused by the magma being heated by the core off the Earth?*1 pointSeismographConvection CurrentTeactonic PlatesLithosphere

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

4.  What is the layer of molten lava below earth's crust but above the core?*1 pointOuter CoreInner CoreCrustMantle

13.  What is the soft layer of the mantle on which the lithosphere floats?*1 pointAsthenosphereDensity in convection currentSedimentary RocksLithosphere

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