Plate Tectonics and Earth's Processes

What theory explains the movement of Earth's crustal plates?

• Continental drift theory

• Plate tectonic theory

• Seafloor spreading theory

• Crustal displacement theory

Which type of plate boundary occurs when two plates move away from each other?

• Convergent boundary

• Divergent boundary

• Transform boundary

• Subduction zone

What evidence supports the theory of plate tectonics?

• The matching shapes of continents

• Similar rock formations across oceans

• Fossil distributions across continents

• All of the above

Where do most earthquakes and volcanoes occur?

• In the middle of tectonic plates

• Near plate boundaries

• Only in oceanic regions

• Only in continental regions

Which type of volcanic eruption is typically the most explosive?

• Shield volcano eruptions

• Stratovolcano eruptions

• Fissure eruptions

• Submarine eruptions

How do scientists measure the intensity of an earthquake?

• Richter scale only

• Mercalli scale only

• Both Richter and Mercalli scales

• Neither scale is used today

What natural resource is often found near convergent plate boundaries?

• Diamonds

• Petroleum

• Mineral Deposits

• Coal

Which process forms new oceanic crust?

• Subduction

• Seafloor spreading

• Continental drift

• Mountain building

What type of plate boundary creates mountain ranges?

• Transform boundaries

• Divergent boundaries

• Convergent boundaries

• Oceanic boundaries

Which feature is typically found at a divergent boundary?

• Deep ocean trenches

• Rift valleys

• Mountain ranges

• Volcanic islands