Continental Drift and Plate Tectonics

What geological feature is produced by a collision between two pieces of continental crust at a converging boundary?

• Volcanoes

• Mountains

• Ocean Trenches

• Plateaus

Who is credited with developing the theory of continental drift?

• Alfred Wegener

• Charles Lyell

• Harry Hess

• James Hutton

What is the main driving force behind plate tectonics?

• Convection currents in the Earth's mantle.

• Gravitational pull from the moon.

• Solar radiation effects on the Earth's crust.

• Magnetic field fluctuations.

What is the name of the process where new oceanic crust is formed at mid-ocean ridges?

• Sea-floor spreading

• Continental drift

• Subduction

• Oceanic convergence

What type of boundary occurs when tectonic plates move apart?

• Divergent boundary.

• Convergent boundary.

• Transform boundary.

• Subduction boundary.

According to Wegener's hypothesis of continental drift, what was the state of the continents?

• The continents were once joined together in a single landmass.

• The continents have always been in their current positions.

• The continents were formed by volcanic activity.

• The continents are constantly moving apart at a rapid pace.

What evidence did Wegener use to support his theory of continental drift?

• Fossil distribution, geological similarities, and climate evidence.

• Only fossil distribution and climate evidence.

• Geological formations and ocean currents.

• Magnetic field changes and tectonic plate movements.

What is the theory that explains the movement of Earth's plates?

• Plate tectonics.

• Continental drift.

• Seafloor spreading.

• Geosyncline theory.

What happens at a divergent boundary?

• New crust is created as tectonic plates pull apart.

• Tectonic plates collide and create mountains.

• Earthquakes occur due to plate friction.

• Volcanoes erupt as plates slide past each other.

What is a mid-ocean ridge?

• An underwater mountain range formed by plate tectonics.

• A type of ocean current that circulates warm water.

• A deep-sea trench where tectonic plates converge.

• A volcanic island formed by underwater eruptions.