Motion at Plate Boundaries

The primary cause of plate movements is (a)  

• Solar radiation
• Ocean tides
• Wind currents
• Plate-tectonic forces

Which type of plate boundary generates new crust?

• Divergent boundaries

• Convergent boundaries

• Transform boundaries

• Plate boundary zones

The average rate of spreading along the Mid-Atlantic Ridge is (a)   .

• 15 cm/yr
• 10 cm/yr
• 2.5 cm/yr
• 5 cm/yr

Match the following countries with the geological feature or process they are best known for:

• Famous for its ancient cratons and gold deposits

• Iceland

• Located on a convergent boundary with frequent earthquakes and volcanoes

• South Africa

• Natural laboratory for studying divergent boundaries

• India

• Location of the Himalayan mountain range formed by continental collision

• Japan

What geological feature is formed at a triple junction?

• A rift zone

• A mountain range

• A trench

• A volcano

What is the deepest part of the ocean floor called?

• Trench

• Rift zone

• Plate boundary zone

• Mid-ocean ridge

Which plate is subducted under the South American Plate at the Peru-Chile trench?

• Pacific Plate

• Nazca Plate

• Eurasian Plate

• African Plate

What is the name of the trench formed by the convergence of the Pacific Plate and the Philippine Plate?

• East Pacific Rise

• Mid-Atlantic Ridge

• Peru-Chile Trench

• Marianas Trench

What is the primary cause of volcanic island arcs?

• Solar radiation

• Partial melting of the descending plate

• Ocean currents

• Wind erosion

Which mountain range was formed by the collision of the Indian and Eurasian Plates?

• Himalayas

• Andes

• Rocky Mountains

• Alps