Which crust is composed of dense basaltic rocks, and is compact with an average thickness of 10 kilometers?Group of answer choicesBoth Oceanic and Continental crust.Oceanic crustContinental crustNone of these choices.Next

Continental crust is primarily composed of:Group of answer choicesBasaltPartly basalt, partly graniteClay and sandGranite

The density of oceanic crust is ___ g/cm3Group of answer choices2.02.73.04.7

Crust is not subducted at this kind of boundary.Group of answer choicesOcean-ocean convergenceOcean-continental convergenceContinental-continental convergenceNone of the above, all crust is subducted into the mantle.

Which of the following statements is true?1 pointContinental crust is more dense than oceanic crustOceanic crust is made mostly of pumice because it is less denseContinental crust is thicker than oceanic crust

Oceanic crust near mid-ocean ridges is ______ than oceanic crust near trenches.Choose 1 answer:Choose 1 answer:(Choice A)   denserAdenser(Choice B)   olderBolder(Choice C)   youngerCyounger