Causes of Plate Movements

1. What is the primary source of energy that drives plate movement?

• A. A. Solar radiation
  

• B. Tidal force
  

• 
  C. Heat from Earth’s interior
  

• D. Gravitational pull of the moon

2. Which process occurs when hot materials rise and cooler materials sink inside the mantle?

• 
  A. Subduction
  

• B. Convection current
  

• C. Slab pull
  

• D. Sea-floor spreading

3. Which of the following best explains the term “slab pull”?

• A. The pushing of plates at mid-ocean ridges
  

• B. The rising of magma in the mantle
  

• C. The sinking of a denser oceanic plate into the mantle
  

• D. The eruption of a volcano

4. What process happens at mid-ocean ridges that contributes to plate movement?

• A. Subduction
  

• B. Convection
  

• C. Ridge push
  

• D. Earthquake formation

5. What process occurs when an oceanic plate is forced beneath a continental plate?

• A. Ridge push
  

• B. Convection
  

• C. Crustal spreading

• D. Subduction
  

6. Which of the following describes "ridge push"?

• A. The downward movement of old oceanic crust
  

• B. The outward force from elevated mid-ocean ridges
  

• C. The movement caused by volcanic eruptions
  

• D. The collapse of trenches

7. What best describes the role of "slab pull" in plate tectonics?

• 
  A. Plates are pulled by a sinking, denser slab at subduction zones
  

• B. Plates are pushed from the sides

• C. Plates melt and flow upwards
  

• D. Plates slide horizontally past each other

8. What drives the lateral movement of tectonic plates from the mantle below?

• A. Slab pull
  

• B. Ridge push
  

• C. Subduction
  

• D. Mantle convection

9. Which layer of the Earth is directly involved in tectonic plate movement?

• A. Inner core
  

• B. Crust

• C. Lithosphere

• D. Asthenosphere

10. Which mechanism is mostly responsible for recycling Earth’s crust?

• A. Mantle convection
  

• B. Ridge push
  

• C. Subduction zones

• C. Earthquake activity