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Twelfth Grade (Grade 12) Geology Questions

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Grade 12 Tectonics
Surface waves transport energy
  1. by compression and expansion.
  2. by shearing.
  3. in a motion similar to ocean waves.
  4. in a random motion.
Grade 12 Tectonics
Plate                 are where most earthquakes occur.
  1. mantle
  2. interiors
  3. centers
  4. boundaries
Grade 12 Geomorphology
Which one of these is NOT associated with glacial erosion?
  1. glacial striation
  2. ablation
  3. plucking
  4. abrasion
Grade 12 Minerals
In geology, the term crystal refers to
  1. any clear, sparkly substance.
  2. minerals with a random arrangement of atoms that causes light interference and sparkle.
  3. minerals with an orderly arrangement of atoms with or without sparkle.
  4. clear volcanic glass that is faceted naturally.
Grade 12 Tectonics
Primary waves travel
  1. faster than surface waves.
  2. slower than secondary waves.
  3. at the same rate as surface waves.
  4. slower than surface waves.
Grade 12 Historical Geology
Which of these is NOT a reason many scientists accept we are coming out of an ice age?
  1. there are higher levels of carbon dioxide
  2. there are fewer glaciers
  3. the temperature at the poles is warming
  4. the ocean levels are falling
Grade 12 Tectonics
Why do many scientists use moment magnitude instead of the Richter scale to measure earthquake energy?
  1. The Richter scale can be inaccurate for earthquakes that shake a long time.
  2. The Richter scale is affected by the quality of building construction.
  3. The Richter scale had a limited range of values and can't measure the strongest earthquakes.
  4. All of the above
Grade 12 Geomorphology
The lower part of the glacier, where more snow melts in the summer and accumulates in winter, is called the
  1. snow line.
  2. zone of accumulation.
  3. ice sheet.
  4. zone of ablation.
Grade 12 Tectonics
As P waves move through the rock, they cause
  1. sideways motions in the rock.
  2. compressions and extensions.
  3. water wave type motions.
  4. shear motions.
Grade 12 Earth's Layers
Subducting plates can sink all the way to the                           boundary.
  1. crust-mantle
  2. lithosphere-asthenosphere
  3. mid-mantle
  4. mantle-core
Grade 12 Earth's Layers
Models of Earth's interior are largely based on                               .
  1. body wave behavior
  2. surface wave behavior
  3. magma temperature differential
  4. earthquake intensity
Grade 12 Tectonics
Which are true for elastic deformation?
  1. stores energy
  2. causes only temporary changes in the rock
  3. occurs at low stresses
  4. all of these answers
Grade 12 Geomorphology
Which of the following is not a characteristic feature of karst topography?
  1. Cave
  2. Sinkhole
  3. Natural bridge
  4. Wells
Grade 12 Historical Geology
During an ice age
  1. continents sink deeper into the asthenosphere.
  2. continents float higher on the asthenosphere.
  3. the oceans rise.
  4. higher latitudes are warmer than lower latitudes.
Grade 12 Geomorphology
What are the cracks of the brittle upper layers of a glacier called?
  1. crevasses
  2. calves
  3. aretes
  4. horns
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