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5 Written questions

5 Matching questions

  1. fertility
  2. litter
  3. topsoil
  4. humus
  5. sediment
  1. a earth materials deposited by erosion
  2. b the loose layer of dead plant leaves and stems on the surface of the soil
  3. c Dark-colored organic material in soil.
  4. d A measure of how well soil supports plant growth.
  5. e Mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil.

5 Multiple choice questions

  1. The layer of soil that differs in color and texture from the layers above or below it.
  2. Soil organism that breaks down the remains of organisms and digests them.
  3. The layer of soil beneath the topsoil that contains mostly clay and other minerals.
  4. wedges of ice in rocks widen and deepen cracks
  5. the loose, weathered material on Earth's surface in which plants can grow

5 True/False questions

  1. acid rainthe grinding away of rock by other rock particles carried in water, ice, or wind

          

  2. weatheringthe loose layer of dead plant leaves and stems on the surface of the soil

          

  3. abrasionThe removal of rock particles by wind, water, ice, or gravity

          

  4. bedrockearth materials deposited by erosion

          

  5. oxidationa chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust

          

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