Plate Tectonics ReTest

Front

What is subduction in plate tectonics?

Back

Subduction is the process where a denser oceanic plate slides beneath a lighter continental plate, leading to volcanic activity and mountain formation.

Front

How does the age of rocks on the ocean floor support plate tectonics?

Back

Younger rocks are found near mid-ocean ridges, while older rocks are found further away, indicating the process of seafloor spreading.

Front

What does the theory of continental drift propose?

Back

The theory states that continents were once joined in a supercontinent and have drifted apart over time.

Front

What is a transform boundary?

Back

A transform boundary is where two tectonic plates slide past each other, causing faults and earthquakes.

Front

What evidence supported Wegener's theory of a supercontinent?

Back

Wegener's proposal was supported by rock, fossil, and climate data that showed similarities across continents.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, often creating new oceanic crust.

Front

What geological features are formed at convergent boundaries?

Back

Convergent boundaries can form mountains, deep ocean trenches, and volcanic arcs.

Front

What is the significance of mid-ocean ridges?

Back

Mid-ocean ridges are underwater mountain ranges formed by plate tectonics, where new oceanic crust is created.

Front

What role do convection currents play in plate tectonics?

Back

Convection currents in the mantle drive the movement of tectonic plates, causing them to shift and interact.

Front

What is the difference between oceanic and continental plates?

Back

Oceanic plates are denser and thinner than continental plates, which are thicker and less dense.