Question

physical structure of the earth
its important to note that the earths structure but is always changing. for example, the lithos tectonic plates are always moving which cause earthquakes, mountain building, and volcanoe
diagram of earths structure: labels include crust (0-100 km thick), asthenosphere, mantle, outer core, inner core, lithosphere (crust and uppermost solid mantle), core (liquid, solid), “to scale” (cross-section of core/crust layers), “not to scale” (3d wedge of crust/mantle), distances 2900 km, 5100 km, 6378 km
which type of crust is generally the youngest?

• oceanic crust
• asthenospheric crust
• continental crust

Explanation:

Oceanic crust is formed at mid - ocean ridges through seafloor spreading. New oceanic crust is constantly being created, and it has a relatively young age compared to continental crust (which is much older and has been around for billions of years). The asthenosphere is part of the mantle, not a type of crust. So the youngest crust is oceanic crust.

Answer:

oceanic crust