Plate tectonic Theories and Structure of the Earth

Identify part A of the following diagram.

• Mantle

• Continental crust

• Magma

• Oceanic crust

Identify part B of the following diagram.

• Continental crust

• Oceanic crust

• Inner core

• Outer core

Identify part C of the following diagram.

• Asthenosphere

• Continental crust

• Mohorovicic discontinuity

• Magma

Identify part D of the following diagram.

• Asthenosphere

• Lithosphere

• Mantle

• Inner core

Identify part E of the following diagram.

• Asthenosphere

• Lithosphere

• Mantle

• Continental crust

Identify part F of the following diagram

• Lithosphere

• Mohorovicic discontinuity

• Outer Core

• Mantle

Identify part G of the following diagram.

• Mantle

• Outer core

• Inner core

• Asthenosphere

Identify part H of the following diagram

• Inner core

• Outer Core

• Mantle

• Lithosphere

External forces are the action of wind, rivers, ice, sea and weathering which reshape the landscape on the outside of the earth. ie; eroding and weathering rocks, mountains and valleys are also known as:

• Denduation

• Endogenic forces

• Mass movement

• Exogenic forces

Internal forces such as molten magma moving inside the earth causing plate movement creating earthquakes, volcanoes, fold mountains and new rocks are also known as:

• Exogenic forces

• Endogenic forces

• Denudation

• Convection currents