Plate Boundaries and Stellar Classification Flashcard

Front

What is a plate boundary?

Back

A plate boundary is the region where two tectonic plates meet. These boundaries can be classified into three main types: convergent, divergent, and transform.

Front

What are the three types of plate boundaries?

Back

The three types of plate boundaries are: 1. Convergent boundaries, where plates move towards each other. 2. Divergent boundaries, where plates move apart. 3. Transform boundaries, where plates slide past each other.

Front

What happens at a convergent boundary?

Back

At a convergent boundary, one tectonic plate is forced under another in a process called subduction, leading to the formation of mountains, earthquakes, and volcanic activity.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, often resulting in the formation of new oceanic crust as magma rises to the surface.

Front

What is a transform boundary?

Back

A transform boundary is where two tectonic plates slide past one another horizontally, which can cause earthquakes.

Front

What is the significance of the Nazca Plate?

Back

The Nazca Plate is significant because it is an oceanic plate that is currently subducting beneath the South American Plate, leading to the formation of the Andes mountains.

Front

Where is the sun located in the Milky Way galaxy?

Back

The sun is located on an arm of a spiral-shaped galaxy, specifically in the Orion Arm.

Front

What is the role of tectonic plates in earthquakes?

Back

Tectonic plates are responsible for earthquakes as their movement and interaction at plate boundaries can release energy, causing the ground to shake.

Front

What is subduction?

Back

Subduction is the process by which one tectonic plate moves under another and sinks into the mantle, often leading to volcanic activity.

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.