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5 Written questions

5 Matching questions

  1. ice wedging
  2. abrasion
  3. bedrock
  4. soil
  5. subsoil
  1. a the loose, weathered material on Earth's surface in which plants can grow
  2. b wedges of ice in rocks widen and deepen cracks
  3. c the grinding away of rock by other rock particles carried in water, ice, or wind
  4. d The layer of soil beneath the topsoil that contains mostly clay and other minerals.
  5. e The solid layer of rock beneath the soil

5 Multiple choice questions

  1. The layer of soil that differs in color and texture from the layers above or below it.
  2. rain containing high amounts of chemical pollutants.
  3. A measure of how well soil supports plant growth.
  4. a chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust
  5. Mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil.

5 True/False questions

  1. sedimentearth materials deposited by erosion


  2. loamRich, fertile soil that is made up of about equal parts of clay, sand, and silt.


  3. humusDark-colored organic material in soil.


  4. depositionThe removal of rock particles by wind, water, ice, or gravity


  5. mass movementearth materials deposited by erosion