Question

The characteristics of two layers of Earth’s crust are listed.

Layer A: Hard, rigid outermost layer of Earth
Layer B: "Plastic" layer containing the mesosphere

Which statement is true?

Layer A is the crust and Layer B is the mantle.
Layer A is the mantle and Layer B is the crust.
Layer A is the outer core and Layer B is the inner core.
Layer A is the inner core and Layer B is the outer core.

Answer 1

The answer would be A. Because the crust is often refereed to as the outermost rigid layer of Earth. Not to mention, the mantle contains the mesosphere and the Asthensophere which is also refereed as the plastic layer.

Answer 2

layer a is the crust and layer b is the mantle