Which of the following layers is defined by its chemical composition?(1 point)

Question

Responses

inner core
inner core - no response given

asthenosphere
asthenosphere - no response given

lithosphere
lithosphere - incorrect

mantle

Answer 1

The layer defined by its chemical composition is the mantle.

The inner core and outer core are primarily defined by their physical properties (solid vs. liquid), while the lithosphere and asthenosphere are defined by their mechanical properties. The mantle, however, is defined by its silicate mineral composition.