Lithosphere (Geosphere)

Question 1

Identify the different layers (and parts) of the Earth

Lithosphere

Answer 1

• Crust
  – Oceanic crust
  – Continental crust
• Mantle
  – Lithosphere (lower part)
  – Asthenosphere
• Core
  – Outer core
  – Inner core

Question 2

Which layer of the Earth are the tectonic plates in

Answer 2

The lithosphere (upper most part of the mantle, and the crust)

Question 3

Identify and describe the different processes that occur in the lithosphere

lithosphere

Answer 3

• Plate Movement
  – Divergent boundaries
  – Convergent boundaries
  – Transform boundaries
  – Subduction boundaries
• Convection currents

Question 4

Explain how plate boundaries result in different landforms and natural hazards

Lithosphere

Answer 4

• Seafloor Spreading: At mid-ocean ridges, magma rises, creating new lithosphere as plates diverge.
• Subduction: One plate sinks beneath another, leading to volcanism and trench formation.
• Mountain Formation: Mountain-building processes occur at convergent boundaries, where continental plates collide