Earth's Inner Layers

What are the layers of Earth, based on composition? Where are they located?

• Inner core, outer core, mantle, and crust; located from inside to outside

• Crust, mantle, outer core, and inner core; located from outside to inside

• Mantle, outer core, inner core, and crust; located from inside to outside

• Outer core, inner core, crust, and mantle; located from outside to inside

What is the composition of the different layers?

• Crust is less than 1% of Earth by mass, mantle represents about 68% of Earth's mass, and core makes up about 31% of the Earth

• Crust represents about 68% of Earth's mass, mantle is less than 1% of Earth by mass, and core makes up about 31% of the Earth

• Crust makes up about 31% of the Earth, mantle represents about 68% of Earth's mass, and core is less than 1% of Earth by mass

• Crust represents about 31% of Earth's mass, mantle is less than 1% of Earth by mass, and core makes up about 68% of the Earth

How do the lithosphere and asthenosphere differ from each other?

• Lithosphere is a brittle, rigid solid, while asthenosphere is solid but can flow and bend

• Lithosphere is solid but can flow and bend, while asthenosphere is a brittle, rigid solid

• Lithosphere and asthenosphere are both brittle, rigid solids

• Lithosphere and asthenosphere are both solid but can flow and bend

What is the core?

• The core is mostly iron metal

• The core is a solid inner layer

• The core is a liquid outer layer

• The core is a combination of iron and nickel

Explain the core's structure.

• The core has two layers: a solid inner layer and a liquid outer layer

• The core is composed of multiple solid layers

• The core is a single solid layer

• The core is a single liquid layer

What is the mantle?

• The mantle is hot, dense, dark (ultramafic) rock

• The mantle is a solid inner layer

• The mantle is a liquid outer layer

• The mantle is a combination of iron and nickel

What is the crust?

• The crust is the outermost layer of Earth

• The crust is a solid inner layer

• The crust is a liquid outer layer

• The crust is a combination of iron and nickel

Why does the Earth have layers?

• The Earth has layers due to differences in composition and mechanical properties

• The Earth has layers due to differences in composition only

• The Earth has layers due to differences in mechanical properties only

• The Earth does not have layers

What are the divisions of Earth based on composition?

• Core, mantle, and crust

• Lithosphere and asthenosphere

• Inner core, outer core, mantle, and crust

• Crust and upper mantle

What are the divisions of Earth based on mechanical properties?

• Lithosphere and asthenosphere

• Core, mantle, and crust

• Inner core, outer core, mantle, and crust

• Crust and upper mantle