WorksheetsUnderstanding Plate Tectonics Concepts
Total questions: 16
Worksheet time: 8mins
Which of the following best describes the process of sea-floor spreading?
The ocean floor is pushed upward by volcanic activity.
New oceanic crust is formed at mid-ocean ridges and slowly moves away.
Oceanic plates are subducted under continental plates.
The ocean floor remains static while continents drift.
What is the primary cause of tectonic plate movement?
Gravitational pull from the moon.
Convection currents in the Earth's mantle.
Wind and water erosion.
Magnetic forces from the Earth's core.
Which of the following is a direct result of tectonic plate interactions?
The formation of the ozone layer.
The occurrence of earthquakes.
The creation of ocean currents.
The cycle of the seasons.
What is the primary evidence for the theory of plate tectonics?
The distribution of earthquakes and volcanoes.
The presence of similar fossils on different continents.
The alignment of magnetic minerals in oceanic crust.
All of the above.
How does the age of rocks change as you move away from a mid-ocean ridge?
Rocks become younger as you move away.
Rocks become older as you move away.
Rocks remain the same age.
Rocks alternate between older and younger.
Which geological feature is typically formed at a convergent boundary involving two continental plates?
Volcanic island arc
Ocean trench
Mid-ocean ridge
Mountain range
What is the primary mechanism that drives the movement of tectonic plates?
Solar radiation
Convection currents in the mantle
Magnetic field interactions
Earth's rotation
What is the primary reason for the formation of volcanic island arcs?
Subduction of a continental plate under an oceanic plate
Transform boundary between two oceanic plates
Convergent boundary between two oceanic plates
Divergent boundary between two continental plates
Which type of plate boundary is most commonly associated with earthquakes?
Subduction zone
Transform boundary
Convergent boundary
Divergent boundary
What is the primary force that causes oceanic plates to sink at subduction zones?
Gravity pulling the denser oceanic plate downward.
Wind erosion on the ocean surface.
Magnetic attraction from the Earth's core.
Solar radiation heating the oceanic plate.
What happens to the oceanic crust as it moves away from a mid-ocean ridge?
It becomes denser and cooler.
It becomes less dense and warmer.
It remains the same density and temperature.
It becomes more buoyant and rises.
What causes the line of volcanoes at the hot spot?
A stationary magma plume beneath moving tectonic plates.
What kind of tectonic boundary exists between the Antarctic and Pacific Plates?
What observations did Alfred Wagoner use to propose the Theory of Continental Drift?
Convection causes plate tectonics.
The ocean currents move in opposite directions in the Northern and Southern hemisphrs..
The continents seem to fit together like a jigsaw puzzle.
Mountains are found at transform boundaries.
The most recently formed oceanic crust is found at divergent boundaries, at mid-ocean ridges. What evidence supports this?
The alternating bands of Normal and Reversed Polarity due to magnetic reversals.
At the Aleutian Trench, which plate is the subducting plate?
