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Twelfth Grade (Grade 12) Earth Science Questions

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Grade 12 Oceanography and Hydrology
What type of glacier is confined by local topography?
  1. Alpine glacier
  2. Continental glacier
  3. Iceberg
  4. Crevasse
Grade 12 Environmental Science
The carbon cycle designates that carbon may be stored in the atmosphere, land, and ocean. In which of the following would you NOT expect to find stored carbon?
  1. carbon dioxide
  2. plant biomass
  3. organic matter
  4. all of the above are carbon sources
Grade 12 Earth's Layers
Earth's layers, listed from LEAST to MOST dense, are                     .
  1. core, crust, mantle.
  2. core, mantle, crust.
  3. mantle, core, crust.
  4. crust, mantle, core.
Grade 12 Environmental Science
The difference between carbon assimilation and carbon emission is known as what?
  1. Carbon Analysis
  2. Carbon Source
  3. DBH
  4. Net Primary Productivity
Grade 12 Oceanography and Hydrology
What is the name of the area of land that is drained by a river system?
  1. Tributary
  2. Watershed
  3. Meander
  4. Erosion
Grade 12 Oceanography and Hydrology
Desalination is the process of what?
  1. Removing the salt from ocean and seawater
  2. Adding salt to fresh water
  3. Pumping water from underground aquifers
  4. Purifying water contaminated with pollutants
Grade 12 Tectonics
A sudden motion of the earth is called                 .
  1. fault vibrations
  2. an earthquake
  3. seismic cracking
  4. refraction waves
Grade 12 Environmental Science
Life history traits maximize reproductive success in uncrowded environments.
  1. Generalist species
  2. Specialist species
  3. R-selected species
  4. K-selected species
Grade 12 Oceanography and Hydrology
Which of the following is NOT a stage of the water cycle?
  1. Evapotranspiration
  2. Desalination
  3. Precipitation
  4. Condensation
Grade 12 Tectonics
Convergence of two continental plates causes formation of                 .
  1. mid-ocean ridges
  2. rift valleys
  3. mountain chains
  4. island arcs
Grade 12 Tectonics
Subduction is
  1. where denser plates sink into the mantle.
  2. where ridge valleys form.
  3. occurring mostly in the Atlantic Ocean.
  4. occurring where continental plates diverge.
Grade 12 Geomorphology
Fast glaciers                           .
  1. move by basal slip
  2. are turbulent
  3. require intense cold
  4. are invariably continental
Grade 12 Environmental Science
Why is overfishing a major problem in the past decades?
  1. Improvement in fishing techniques
  2. Less people are eating fish
  3. Increasing demand for fish
  4. Protected marine areas are established
Grade 12 Tectonics
Long term earthquake predictions are best at predicting
  1. where an earthquake is likely to occur.
  2. how much damage the next earthquake will cause.
  3. when the next earthquake will occur.
  4. how long the next earthquake will last.
Grade 12 Geomorphology
Which of the following is NOT true about glaciers?
  1. originate on land
  2. exist only in the Northern Hemisphere
  3. form from the recrystallization of snow
  4. show evidence of past or present flow
Grade 12 Rocks
The majority of rocks in the crust are
  1. sedimentary.
  2. metamorphic.
  3. igneous.
  4. volcanic.
  5. topsoil.
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