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Twelfth Grade (Grade 12) Earth Science Questions

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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 Environmental Science
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 Oceanography and Hydrology
The balance between what two processes will determine a region's water budget?
  1. Desalination and Condensation
  2. Evaporation and Condensation
  3. Precipitation and Evaporation
  4. Precipitation and Condensation
Grade 12 Earth's Layers
Grade 12 Oceanography and Hydrology
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 Oceanography and Hydrology
Which of the following is a feature NOT often exhibited by glaciers?
  1. Crevasses
  2. Icebergs
  3. Artesian springs
  4. Ice shelves
Grade 12 Geomorphology
Grade 12 Environmental Science
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
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
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