Note: For systematic learning of the Soil and Dust MCQs in Forensic Science, you can hover over the main page of the Trace Evidence MCQs sections.

1. The study of soil constitutes an independent branch of science known as :

  1. Pedology        
  2. Environmental study
  3. Mineralogy     
  4. None of the above

Answer

2. The forensic definition of soil is:

  1. A mixture of mineral grains and decayed organic matter
  2. A mixture of mineral grains, organic matter, and any other material mixed with the sample
  3. Decayed organic matter only
  4. Anything that looks like dirt

Answer

3. Any disintegrated material, natural and /or artificial that lies on or near the earth’s surface is better known as

  1. Mineral
  2. Rock
  3. Soil
  4. Lava

Answer

4. Process of formation of soil regulated from various processes such as effects of place, environment, and history is called

  1. Pedology   
  2. Mineralogy
  3. Palingenesis
  4. Pedogenesis

Answer and Explanation

5. Which of the following process evades the soil formation

  1. Weathering
  2. Watering
  3. Erosion
  4. All of the above

Answer

6. Soil aggregates naturally into a structural unit called

  1. Rocks
  2. Peds
  3. Coarse
  4. All of the above

Answer and Explanation

7. The study of the relationship between soil and living organism is called

  1. Pedology
  2. Pedogensis
  3. Palynology
  4. Edaphology

Answer and Explanation

8. The study of rocks is termed as:

  1. Pedology
  2. Palynology
  3. Petrology
  4. No Distinct discipline

Answer and Explanation

9. Following are the inorganic constituent of soil, except

  1. Stones
  2. Sand
  3. Silt
  4. Decay organisms 

Answer

10. Which of the following granular material of soil has the largest diameter?

  1. Clay
  2. Sand
  3. Silt
  4. Both (2) and (3) are same

Answer and Explanation

11. Dust is a mixture of

  1. Solid particles
  2. Particles size below 100 µm
  3. Clay
  4. Both (1) and (2)

Answer and Explanation

12. Soil can be divided into layers known as horizons. Horizon ‘O’ is the topmost layer having which of the following?

  1. Sand and Silt 
  2. Mixture of minerals and clay
  3. Organic constituents (humus)
  4. Mixture of sand and mineral particles

Answer and Explanation

13. Soil evidence is a challenge to Forensic Scientists because soil profiles may differ

  1. After 100 feet
  2. After 60 feet
  3. After 50 feet
  4. Within a few feet itself

Answer

14. The control soil sample for matching the incriminated soil sample of footprint should be collected from:

  1. Footprint itself
  2. About 2-3 inches away from the footprint
  3. About 1 feet away from the footprint
  4. More than 1 feet away from the spot

Answer and Explanation

15. Dust from clothing and other placed evidence should be collected using

  1. Vacuum 
  2. Brush
  3. Cellophane tape lifting
  4. All of the above

Answer

16. Dirt from fingernails should be collected using

  1. Clipping
  2. Brushing
  3. Dirt remover cuticle stick
  4. Both (1) and (3)

Answer and Explanation

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