RYAN Unit 3 Plate Tectonics Review (2)

A cross section of the Himalayan Mountain Range is shown. This mountain range is the result of which type of boundary interaction?

• convergent boundary between a continental plate and an oceanic plate

• divergent boundary between a continental plate and an oceanic plate

• convergent boundary between two continental plates

• divergent boundary between two continental plates

Which set of arrows BEST shows the convection currents associated with the formation of a mid-ocean ridge?

• 
• 
• 
• 

This map shows an area on Earth called: __________.

• Hot Spots

• The Ring of Earthquakes

• The Ring of Fire

• The African Plate

Why do earthquakes often cause damaging fires?

• Magma from deep underground escapes through faults.

• Tsunamis from earthquakes generate enough heat to start fires.

• Lightning strikes are common during earthquakes.

• Earthquake vibrations can break gas lines, water lines, and electrical lines.

Why are seismic waves of an earthquake more strongly felt at the epicenter of an earthquake?

• The epicenter is directly above the focus, the place inside the Earth where the earthquake starts.

• Most faults converge at the epicenter.

• Millions of small movements of the crust occur here.

• Crustal plates rise and fall with the ocean tides.

Why was paleomagnetism so important in discovering plate tectonics?

• It illustrated the location of the South Pole.

• It allowed for the measuring of mountain building rates.

• It allowed for the depth of the ocean to be measured.

• It demonstrated sea floor spreading.

When an earthquake occurs, energy radiates in all directions from its source, which is called the: ___________.

• seismic center

• fault

• focus

• epicenter

Which seismic waves travel most rapidly?

• P-waves

• S-waves

• Surface waves

• Tsunamis

Which of the following affects the amount of destruction caused by earthquake vibrations?

• The intensity and duration of the vibrations.

• The design of the structures.

• The nature of the material on which the structures are built.

• All of the above.

What is the minimum number of seismic stations required to determine the location of an earthquake’s epicenter?

• One

• Two

• Three

• Four