NAEP Geography Grade 8 - Question List

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21. In ancient Greece, most towns were built on the tops of hills primarily because
  1. it was easier to find water on hilltops than in lowlands
  2. temperatures were warmer at high elevations
  3. defending a hill town was easier than defending a lowland town
  4. people in early Greece did not rely on farming for food
22. Detergents upset the natural balance of
  1. ocean currents
  2. the atmosphere
  3. climatic conditions
  4. lakes and streams
23. What contributes to the greenhouse effect?
  1. Soil erosion
  2. Burning fuels such as oil, coal, and gas
  3. Failure to use crop rotation
  4. Water pollution
24. In the mid-nineteenth century, before railroads were constructed, people in the United States transported commercial materials, such as timber and coal, over long distances primarily by means of
  1. rivers and canals
  2. turnpikes and freeways
  3. pack horses and mule trains
  4. ox carts and Conestoga wagons
25. The major areas of wheat production in the world are the central United States and Canada, Ukraine, south central Australia, and the pampas of Argentina. What is the characteristic shared by these areas that explains their role in wheat production?
  1. All have rainy, damp climates.
  2. All are near sea coasts.
  3. All are plains.
  4. All are in highland regions.

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