Structure of the Earth Test Review

Front

What does the elastic rebound hypothesis explain?

Back

The elastic rebound hypothesis explains the release of energy during an earthquake, not a volcano.

Front

What is the reason for the ordered arrangement of Earth’s layers?

Back

The densest elements sink toward the center of Earth, while the least dense elements rise toward the surface.

Front

What layer of Earth is described as less than 1% of Earth's mass and is the outermost layer?

Back

The crust.

Front

Can S waves travel through liquids and gases?

Back

No, S waves cannot travel through liquids and gases.

Front

What evidence provides the most information to geologists about the Earth's interior?

Back

Rock samples and seismic waves.

Front

What are the two main types of seismic waves?

Back

P waves (primary waves) and S waves (secondary waves).

Front

What is the composition of the Earth's crust?

Back

The Earth's crust is primarily composed of silicate rocks.

Front

What is the mantle, and what is its significance?

Back

The mantle is the layer between the crust and the core, and it is significant for its role in tectonic activity and convection currents.

Front

What is the outer core made of?

Back

The outer core is made of liquid iron and nickel.

Front

What is the inner core, and what is its state?

Back

The inner core is solid and composed mainly of iron and nickel.