• Description

Question 1 (Multiple Choice Worth 2 points)

Which Earth sphere causes the downhill movement of soils and water by glaciers?

  • Geosphere
  • Hydrosphere
  • Cryosphere
  • Atmosphere

Question 2 (Multiple Choice Worth 2 points)

A soil sample is 35 percent sand, 10 percent clay, and 55 percent silt. Use the following soil texture triangle to determine the type of soil present in this sample.

  • Silty loam
  • Sandy clay
  • Loamy sand
  • Medium loam

Question 3 (Multiple Choice Worth 2 points)

Which of the following would be the best soil for gardening?

  • Silty clay
  • Sandy clay
  • Silty sand
  • Clay loam

Question 4 (Multiple Choice Worth 2 points)

Which of the following methods of soil conservation uses the roots of plants as anchors in the soil?

  • Adding fertilizers to soil
  • Planting trees on sloped surfaces
  • Adding beneficial organisms to soil
  • Watering grasses to add moisture

Question 5 (Multiple Choice Worth 2 points)

Which process of soil erosion is being prevented by the structure shown below?

  • Wind
  • Gravity
  • Glaciers
  • Moving water

Question 6 (Multiple Choice Worth 2 points)

Which aspect of soil characteristics is a soil triangle used for?

  • Determining color
  • Determining types of soils
  • Separating soils by grain size
  • Determining soil conservation techniques

Question 7 (Multiple Choice Worth 2 points)

Which of the following horizons is the soil’s parent material?

  • A horizon
  • B horizon
  • horizon
  • D horizon

Question 8 (Multiple Choice Worth 2 points)

Which statement about soil color is true?

  • Soils vary in color based on their depth
  • Soils do not vary in color based on their depth.
  • Soils close to Earth’s surface are always darker
  • Soils far from Earth’s surface are always darker.

Question 9 (Multiple Choice Worth 2 points)

Which of the following best approximates the percentages of sand, clay, and silt in a sandy loam? Use the soil texture table below to answer.





Question 10 (Multiple Choice Worth 2 points)

Which of the following is the smallest single component of a typical soil?

  • Gases
  • Minerals
  • Moisture
  • Organic material

Question 11 (Essay Worth 5 points)

Jonathan used the following soil triangle to identify a sample of soil as sandy clay.

Explain the characteristics of this soil sample that likely allowed Jonathan to make this identification. Include particle size and texture in your response.

Question 12 (Essay Worth 5 points)

Matthew is a soil scientist. He has been hired to determine why there is a soil drainage problem near a neighbor’s home. What steps would he need to complete to determine the types of soils present near his neighbor’s home if he finds the soil is mostly clay? Prepare a recommendation plan to improve the soil drainage for his neighbor based on the results.


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