Plate Tectonics Practice

Front

What is a divergent boundary?

Back

A divergent boundary is a tectonic plate boundary where two plates move away from each other, leading to the formation of new crust as magma rises to the surface.

Front

What features are commonly found at oceanic-oceanic convergent plate boundaries?

Back

Deep-sea trenches and island arcs are commonly found at oceanic-oceanic convergent plate boundaries.

Front

What is the mid-ocean ridge?

Back

The mid-ocean ridge is a continuous mountain range that runs along the ocean floor, formed by seafloor spreading at divergent boundaries.

Front

What happens at a convergent boundary?

Back

At a convergent boundary, two tectonic plates collide, which can lead to the formation of mountains, deep-sea trenches, or volcanic activity.

Front

What is subduction?

Back

Subduction is the process by which one tectonic plate moves under another plate and sinks into the mantle.

Front

What is seafloor spreading?

Back

Seafloor spreading is the process by which new oceanic crust is created at mid-ocean ridges as tectonic plates pull apart.

Front

What is a transform boundary?

Back

A transform boundary is a tectonic plate boundary where two plates slide past each other horizontally, often causing earthquakes.

Front

What geological features are formed at continental-continental convergent boundaries?

Back

Folded mountain ranges are formed at continental-continental convergent boundaries due to the collision of two continental plates.

Front

What is the role of the mantle in plate tectonics?

Back

The mantle is a layer of the Earth that provides the heat and convection currents necessary for the movement of tectonic plates.

Front

What would happen if Earth's mantle became cooler and solid?

Back

If Earth's mantle became cooler and solid, tectonic activity would cease, leading to a stable crust with no earthquakes or volcanic activity.