Front

What is the approximate pressure at the boundary between the inner core and the outer core?

Back

3.0 million atmospheres.

Front

If it took the S-wave 4 minutes to travel, how far was the epicenter distance?

Back

1 x 10^3 km.

Front

How far does a S wave travel in 10 minutes?

Back

3,000 km.

Front

What is the density range of the Inner Core?

Back

12.3 - 13.1 g/cm³.

Front

How is the density of the Earth organized?

Back

Lowest at the crust, highest at the inner core.

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 inner core?

Back

Primarily composed of iron and nickel.

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid, while the outer core is liquid.

Front

What is the role of seismic waves in understanding Earth's interior?

Back

Seismic waves help scientists infer the structure and composition of Earth's layers.

Front

What is the average density of the Earth?

Back

Approximately 5.5 g/cm³.