The Mohorovicic discontinuity was discovered by monitoring the speed of seismic waves through Earth.
Continental crust is younger than oceanic crust.
Crust and lithosphere refer to the same layer of the Earth.
The layers of the Earth are described by their composition but not their mechanical properties.
Ocean ridges form as a result of _______.a.slab pullb.the upwelling of magma from the asthenospherec.sediment being deposited from the oceand.all of the above
Which of the following best explains the importance of Earth’s crust to living organisms?a.The continental crust allowed the evolution of life on land.b.The crust provides raw materials necessary for life.c.The crust allowed the formation of fossil fuels.d.The rock cycle recycles sedimentary rocks formed from animal shells.
Which layers of the Earth are common to both the compositional and mechanical descriptions? a.crust and mantleb.lithosphere and mesospherec.inner and outer cored.crust and lithosphere
Oceanic crust is best described as _______.a.thin and youngb.continuously replenishedc.a majority of Earth’s crustd.all of the above
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