Earthquakes — Unit test

Question 1

Which continents contain folded mountains that match up to form one continuous mountain chain, serving as evidence that they once belonged to one landmass called Pangaea?

Revolt · Accepted Answer

South America and Africa

Question 2

According to the theory of plate tectonics, which is one feature that plates carry?

Revolt · Accepted Answer

seafloor

Question 3

What happened to the giant landmass that Wegener described?

Revolt · Accepted Answer

The pieces broke apart and drifted away from one another over time.

Question 4

Which coal field location is related to coal fields in the United States and supports the theory of continental drift?

Revolt · Accepted Answer

Europe

Question 5

Study this image of lithospheric plates.

Revolt · Accepted Answer

Pacific, Eurasian, and African

Question 6

Which statement describes the location of an earthquake’s epicenter?

Revolt · Accepted Answer

It is located at the point directly above the focus

Question 7

Which word identifies the shaking that results from movement under Earth’s surface?

Revolt · Accepted Answer

earthquake

Question 8

The table shows the thickness, top density, and bottom density of the different layers of the Earth. Thickness (km)Density (g/cm3)Types of Rock FoundTopBottomCrust302.22.9Silicic rocksUpper mantle7203.44.4PeridotiteLower mantle2,1714.45.6Magnesium and silicon oxidesOuter core2,2599.912.2Iron+oxygenInner core1,22112.813.1Iron+oxygen

Revolt · Accepted Answer

As depth increases, the density of the layers increases.

Question 9

What type of stress occurs when plates move apart?

Revolt · Accepted Answer

tension

Question 10

The image shows a landform created by Earth’s forces.

Revolt · Accepted Answer

syncline

Earthquakes — Unit test Answers

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