The two correct statements about Earth's interior layers are:
- The asthenosphere is located below the lithosphere.
- The mantle is composed of silicate material.
The other statements are incorrect descriptions of Earth's interior layers. The crust is primarily composed of silicate rocks and minerals rather than iron, nickel, and sulfur. The mesosphere is not the outermost layer; it refers to a part of the mantle below the asthenosphere. The outer core is primarily composed of liquid iron and nickel, while the inner core is solid iron and nickel; they consist of the same elements but in different states.