Question

This crust is the most dense

this crust is made of igneous
rocks from volcanoes
1. oceanic crust
this crust is younger
2. continental crust
this crust is made of
metamorphic rocks from
deep within the earth
this crust is thinner

Answer 1

1. oceanic crust

Step-by-step explanation:

oceanic crust is pushed back into the mantle at subduction zones. As old oceanic crust is subducted and melted into magma, new oceanic crust in the form of igneous rock is formed at mid-ocean ridges and volcanic hotspots.