Practice exam #3 - QUESTION 1

Yimin,
Answers for question 1(C) are much better now, but additional clarifications are still needed for these orders:
-Brunisol it's not just soluble salts that are slightly modified, but something else as well)
-Gleysol - it's not about accumulation of water at the soil surface but about water table going up & down within the soil profile, bringing along fluctuations in aerobic & anaerobic conditions (or oxidation & reduction). Question for all students - what is the name of this soil forming process that I just described here?
-Podzol - more specific name of soil forming process that leads to podzolic Bf horizon is needed
-Organic soil - yes, they may be developed on organic deposits, but what is the soil forming process that leads to their development?
-Cryosols - what is the name of soil forming process in this soil that causes mixing of soil mass in it?

Brunisols - soluble salts and carbonates move down through the soil profile (may be redundant with previous answer)

Gleysols - gleying

Podzols - illuviation of Al and FE oxides and/or organic matter in the Bf, Bhf, and Bh horizons due to acidity and subsequent eluviation in the A horizon

Organic soils - accumulation of organic material such as peat and that from other vegetation that grows in saturated or semi-saturated sites

Cryosols - cryoturbation

Question about soil forming processes for Regosols: Does this include the beginning of loss of soluble salts along with poor soil development?

Further question: Will we be examined on great groups, like 'Brown' versus 'Black'

Chernozems or just the orders?

Thanks!