137) to get a sample material from the mantle, drilling will be done through the oceanic crust rather than through the continental crust because oceanic crust i

137) To get a sample material from the mantle, drilling will be done through the oceanic crust rather than through the continental crust because oceanic crust is: A. Younger than continental crust B. More dense than continental crust C. Thinner than continental crust D. Softer than continental crust (ISM-2014)