Volcanoes — Unit test

Question 1

What type of stress occurs when plates move apart?

Revolt · Accepted Answer

tension

Question 2

Which statement describes one aspect of an earthquake’s magnitude?

Revolt · Accepted Answer

It is based on the size of seismic waves.

Question 3

What is the orientation of the magnetic stripes of iron contained in rocks that support the idea of seafloor spreading?

Revolt · Accepted Answer

north and south

Question 4

Which type of zone is located at a deep-ocean trench?

Revolt · Accepted Answer

subduction

Question 5

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 6

The image shows a type of fault.

Revolt · Accepted Answer

shearing

Question 7

Which word identifies the agent that carries the energy released from earthquakes?

Revolt · Accepted Answer

waves

Question 8

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

Revolt · Accepted Answer

earthquake

Question 9

From which location does seafloor spreading originate?

Revolt · Accepted Answer

mid-ocean ridges

Question 10

How long ago do scientists believe the continents formed Pangaea?

Revolt · Accepted Answer

about 300 million years ago

Volcanoes — Unit test Answers