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Twelfth Grade (Grade 12) Geology Questions

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Grade 12 Historical Geology
Which of the following periods was the age of the fishes?
  1. Silurian
  2. Cretaceous
  3. Jurassic
  4. Triassic
  5. Devonian
Grade 12 Earth's Layers
The hot springs of Iceland are created due to
  1. divergent plate boundaries.
  2. absorption of the Sun's heat on its dark rock surfaces.
  3. plutons.
  4. man-made heating units.
Grade 12 Tectonics
The Richter scale
  1. is not as accurate as the Mercalli scale.
  2. is based on vibrations of the air.
  3. measures of the strength of a seismic wave.
  4. measures heat.
Grade 12 Historical Geology
The polarity pattern of the ocean crust along the Mid-Atlantic Ridge helped scientists determine
  1. where to find fossils.
  2. the sediment thickness of the ocean floor.
  3. how magnets work.
  4. the age of the oceanic basalt.
Grade 12 Historical Geology
When an ice age occurs, sea levels
  1. rise.
  2. fall.
  3. remain unchanged.
Grade 12 Geomorphology
What feature is created when two lateral moraines join?
  1. esker
  2. medial moraine
  3. drumlin
  4. arete
Grade 12 Historical Geology
About how long ago did the most recent glacial advance begin?
  1. 10,000 years ago
  2. 100,000 years ago
  3. 18,000 years ago
  4. 8.5 million years ago
Grade 12 Historical Geology
The Pleistocene glaciation may have been triggered by
  1. a sudden increase in sea level.
  2. a sudden movement of Greenland over the North Pole.
  3. an increase in volcanic activity.
  4. a decrease in sea level.
Grade 12 Tectonics
The strongest earthquakes can release hundreds of times the energy of the Hiroshima bomb.
  1. This statement is correct.
  2. This statement is incorrect.
Grade 12 Geomorphology
Glaciers flow because
  1. they are cold.
  2. the have warm centers.
  3. of the force of gravity.
  4. they have liquid centers.
Grade 12 Historical Geology
Define fossil.
Grade 12 Minerals
Most minerals have
  1. more than one bond type
  2. metallic bonds exclusively
  3. crystalline bonds
  4. protonic bonds
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