Soils Classification Practice
25 Questions
| Attempts: 740
.
Questions and Answers
- 1.Write text here
- 2.Which surface horizon has a low base saturation (USDA)?
- A.
Mollic
- B.
Umbric
- C.
Ochric
- D.
Histic
- 3.List in order the hierarchial classifications for USDA[Blank][Blank][Blank][Blank][Blank][Blank]
- 4.Which soil order (USDA) has 30% or more clay to a depth of 50 cm and shrinking/swelling properties?
- A.
Histosols
- B.
Andisols
- C.
Vertisols
- D.
Utisols
- E.
Gelisols
- 5.Soils with organic soil materials extending down to a impermeable layer or with an organic layer that is more than 40 cm thick and without andic properties
- A.
Histosols
- B.
Spodosols
- C.
Oxisols
- D.
Vertisols
- E.
Alfisols
- 6.Which USDA soil order has the highest degree of weathering and soil development?
- A.
Entisols
- B.
Vertisols
- C.
Utisols
- D.
Aridsols
- E.
Option is not listed
- 7.For USDA nomenclature names grow to the right
- A.
True
- B.
False
- 8.Name the USDA sub-order [Blank] and order [Blank] of Haplorthod
- 9.Oxisols and Ultisols are the only USDA orders that do not have CSSC (Canadian) equivalents
- A.
True
- B.
False
- 10.Little development because of temperature, Frost churning is typical
- A.
Histosols
- B.
Gelisols
- C.
Aridisols
- D.
Inceptisol
- 11.Intensive acid leaching, with podzolic B (o.m. & Al (+Fe) accumulation; Acid vegt: forest (particularly conifer) or heath
- A.
Spodosols
- B.
Histosols
- C.
Mollisols
- D.
Vertisols
- 12.New soils; little or no horizon development; varied locations – youth, erosion, aridity
- A.
Inceptisols
- B.
Aridisols
- C.
Entisols
- D.
Alfisols
- 13.Young soils; some diagnostic features, but no “mature” horizons; weakly developed A (usually ochric)
- A.
Ultisols
- B.
Histosols
- C.
Mollisols
- D.
Inceptisols
- 14.Organic soils without permafrost; wetland soils; little profile development because of anaerobic conditions; accumulation of organic matter (thick layers);
- A.
Spodosols
- B.
Histosols
- C.
Mollisols
- D.
Oxisols
- 15.Largest global order; Light coloured (ochric) A horizons
- A.
Aridisols
- B.
Andisols
- C.
Alfisols
- D.
Vertisols
- 16.Accumulation of calcium-rich o.m. to form thick (>10 cm), dark, mollic / chernozemic A-horizon, with high base exchange capacity; Cool, sub-arid to sub-humid plains of prairies
- A.
Spodosols
- B.
Histosols
- C.
Mollisols
- D.
Vertisols
- 17.More weathered than mollisols, less so than spodosols (podzols); Typically soils of deciduous forest or savanna
- A.
Aridisols
- B.
Andisols
- C.
Alfisols
- D.
Vertisols
- 18.Gleysolic Order is only recognized in Canada
- A.
True
- B.
False
- 19.Gley is a group of colors that are rich dark brown-black color
- A.
True
- B.
False
- 20.Oxisols are relevant in Canada
- A.
True
- B.
False
- 21.Ultisols are [Blank] weathered and acidic than Alfisols, but [Blank] so than Spodosols
- 22.Was this helpful in testing your knowledge?
- A.
Yes
- B.
Yes
- C.
Yes
- D.
Yes
- 23.Soil Classification is fucking brutal and almost pointless to learn
- A.
True
- B.
False
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