Test Review for Plate Tectonics

Front

What is a trench?

Back

A trench is a deep, narrow depression in the ocean floor that forms as a result of the oceanic crust being forced under another tectonic plate.

Front

What type of boundary is a convergent boundary?

Back

A convergent boundary is where two tectonic plates move toward each other, often resulting in one plate being forced beneath the other.

Front

Where is newer oceanic crust found?

Back

Newer oceanic crust is found closer to the mid-ocean ridge, where tectonic plates are diverging.

Front

What happens to rocks as they move away from the Mid-Atlantic Ridge?

Back

As rocks move farther from the Mid-Atlantic Ridge, they become increasingly older.

Front

What are mid-ocean ridges associated with?

Back

Mid-ocean ridges are associated with divergent boundaries, where tectonic plates are moving apart.

Front

Define plate tectonics.

Back

Plate tectonics is the scientific theory that describes the large-scale movement of Earth's lithosphere, which is divided into tectonic plates.

Front

What is a transform boundary?

Back

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

Front

What is the significance of the Mid-Atlantic Ridge?

Back

The Mid-Atlantic Ridge is a divergent boundary that is significant for being the longest mountain range in the world and a site of new oceanic crust formation.

Front

What is subduction?

Back

Subduction is the process by which one tectonic plate is forced under another, often leading to the formation of trenches and volcanic activity.

Front

What evidence supports the theory of plate tectonics?

Back

Evidence includes the age of rocks at mid-ocean ridges, the distribution of earthquakes, and the fit of continental coastlines.