Exploring Plate Tectonics and Movement

What is the primary difference between oceanic and continental plates?

• Oceanic plates are thicker and less dense than continental plates.

• Oceanic plates are thinner and more dense than continental plates.

• Oceanic plates are made of granite, while continental plates are made of basalt.

• Oceanic plates are older than continental plates.

Which geological feature is commonly formed at the boundary between two converging oceanic plates?

• Mountain ranges

• Ocean trenches

• Rift valleys

• Mid-ocean ridges

What is the process called when one tectonic plate is forced under another?

• Subduction

• Divergence

• Convection

• Transformation

Which type of plate boundary is most likely to cause earthquakes?

• Convergent boundary

• Divergent boundary

• Transform boundary

• Passive boundary

What is the main composition of continental plates?

• Basalt

• Granite

• Limestone

• Sandstone

Which of the following is a result of divergent boundaries between tectonic plates?

• Earthquakes

• Volcanic arcs

• Mid-ocean ridges

• Fold mountains

How does the theory of plate tectonics explain the movement of continents?

• Continents float on the ocean.

• Continents are pushed by ocean currents.

• Continents are carried on tectonic plates that move due to mantle convection.

• Continents are stationary and do not move.

Which type of plate is primarily responsible for the formation of volcanic island arcs?

• Continental plates

• Oceanic plates

• Both continental and oceanic plates

• Neither continental nor oceanic plates

What is the average thickness of oceanic plates?

• 5-10 km

• 10-20 km

• 20-30 km

• 30-40 km

Which of the following best describes the movement at a convergent boundary?

• Plates move away from each other.

• Plates slide past each other.

• Plates move towards each other.

• Plates remain stationary.