Question

question 6
1 pt
oceanic crust floats lower in the mantle than continental crust because
oceanic crust is thinner and denser than continental crust.
oceanic crust is thinner and less dense than continental crust.
oceanic crust is thicker and less dense than continental crust.
oceanic crust is thicker and denser than continental crust.

Explanation:

The principle of isostasy states that denser materials will sink lower in a fluid - like medium. Oceanic crust is thinner (about 5 - 10 km) and denser (due to its composition of basaltic rocks) compared to continental crust (about 30 - 70 km thick and composed of more granitic, less - dense rocks). So, it floats lower in the mantle.

Answer:

Oceanic crust is thinner and denser than continental crust.