What's the main cause of most earthquakes?
  • Pressure from within Earth's crust
  • Hurricanes
  • Human activity
  • Changes in temperature within the earth's mantle
Which of the following is a true statement about tectonic plates?
  • All tectonic plates are located at Earth's core
  • They're located approximately 10 meters below the surface of the ocean
  • They're located in the molten layer beneath Earth's crust
  • All of Earth's landmass rests on tectonic plates
The weight of the lithosphere keeps the mantle in a semi-solid state. What can you infer from this?
  • Pressure and heat have similar effects on solids
  • Pressure raises the melting point of solids
  • Pressure lowers the melting point of solids
  • Pressure has no effect on the melting point of solids
Place the following in sequence from highest to lowest temperature: A) Lithosphere; B) Mantle; C) Core
  • C, A, B
  • B, C, A
  • C, B, A
  • A, C, B
What can you infer from the fact that tectonic plates are always moving around?
  • New volcanoes form every few years.
  • The shape and location of the continents have changed over time.
  • Tectonic activity probably caused the last Ice Age.
  • Earthquakes will continue long after hurricanes and tsunamis have stopped.
Why are surface waves more destructive to buildings than the initial seismic wave in an earthquake?
  • It creates more sustained motion on the surface.
  • It reaches the surface faster.
  • It reaches deeper below the surface.
  • It travels farther from the hypocenter.
What is this instrument called?
sc-7 sb-1-Earthquakeimg_no 316.jpg
  • Richter scale
  • Barometer
  • Electrograph
  • Seismograph
Why are faults sometimes referred to as "active boundaries?" Choose the best answer.
  • Because they are all volcanically active
  • Because they serve as boundaries between nations
  • Because Earth's crust shifts on either side of them
  • Because people must actively avoid faults to escape injury
In the phrase, "The Richter scale measures the potency and duration of seismic events," what does "potency" mean?
  • Speed
  • Strength
  • Type
  • Time
Which city is most likely to experience a strong earthquake?
  • Los Angeles
  • Chicago
  • New York
  • Miami
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