ES Unit 3 Test Review

Front

What is the range of pressure in Earth’s interior where rock with a density range of 3.4-5.6 g/cm³ is found?

Back

0.2 to 1.4 million atmospheres.

Front

What is the depth and density of Earth’s interior at location W, where seismic waves are measured?

Back

Depth: 2900 km, Density: from 5.6 g/cm³ to 9.9 g/cm³.

Front

What is the inferred density of some locations within layer C of Earth’s interior?

Back

12.9 g/cm³.

Front

Which block diagram represents the plate motion at the Himalayan Mountains?

Back

Block diagram 3.

Front

How does the density and composition of the oceanic crust compare to the continental crust?

Back

The oceanic crust is more dense and less felsic.

Front

What are P-waves and S-waves in the context of seismic activity?

Back

P-waves are primary waves that compress and expand the material they move through, while S-waves are secondary waves that move material up and down or side to side.

Front

What is the composition of the continental crust compared to the oceanic crust?

Back

The continental crust is generally more felsic, containing more silica and aluminum, while the oceanic crust is more mafic, containing more iron and magnesium.

Front

What is the significance of seismic wave velocity in understanding Earth’s interior?

Back

Seismic wave velocity helps determine the density and state (solid or liquid) of materials within Earth’s layers.

Front

What is the average density of the Earth’s crust?

Back

The average density of the continental crust is about 2.7 g/cm³.

Front

What geological feature is formed at the boundary where two tectonic plates meet?

Back

Geological features such as mountains, earthquakes, and volcanoes can form at tectonic plate boundaries.