Earth's Layers and Plate Tectonics

Front

What type of plate boundary is characterized by plates moving towards each other?

Back

Convergent boundary.

Front

What are the two types of crust found on Earth?

Back

Continental and oceanic crust.

Front

What hypothesis suggests that continents were once part of a single supercontinent?

Back

Continental drift.

Front

What is the outermost layer of the Earth called?

Back

Crust.

Front

What type of plate boundary is responsible for the formation of the Great Rift Valley?

Back

Divergent boundary.

Front

What layer of the Earth lies beneath the crust?

Back

Mantle.

Front

What is the term for the movement of tectonic plates?

Back

Plate tectonics.

Front

What type of plate boundary occurs when two plates slide past each other?

Back

Transform boundary.

Front

What geological feature is formed at a convergent boundary?

Back

Mountains or deep ocean trenches.

Front

What is the layer of the Earth that is semi-fluid and allows tectonic plates to move?

Back

Asthenosphere.