Lithosphere

What is the outermost layer of the Earth called?

• Mantle

• Crust

• Core

• Lithosphere

Which layer of the Earth is composed mostly of iron and nickel?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the process by which new oceanic crust is formed at mid-ocean ridges?

• Subduction

• Sea-floor spreading

• Convection

• Erosion

Which type of plate boundary is characterized by plates sliding past each other?

• Convergent boundary

• Divergent boundary

• Transform boundary

• Subduction zone

What type of rock is formed from the cooling and solidification of magma or lava?

• Sedimentary rock

• Metamorphic rock

• Igneous rock

• Basalt

Which of the following processes is involved in the formation of sedimentary rocks?

• Melting

• Erosion

• Crystallization

• Metamorphism

What is the name of the process where one tectonic plate is forced under another?

• Subduction

• Divergence

• Convection

• Transformation

Which layer of the Earth is responsible for the generation of the Earth's magnetic field?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the term for the cycle that describes the transformation of rocks from one type to another?

• Water cycle

• Carbon cycle

• Rock cycle

• Nitrogen cycle

Which of the following is a characteristic of metamorphic rocks?

• They are formed from the cooling of magma.

• They contain fossils.

• They have been altered by heat and pressure.

• They are formed by the accumulation of sediments.