Part 1-: Which soil can be formed on quartz-rich parent material and has a whiti

Question

Part 1-:

Which soil can be formed on quartz-rich parent material and has a whitish bleached horizon?

a) luvisol

b) brunisol

c) cryosol

d) chernozem

e) podzol

Part 2-:

_______ is an example of _______________:

a) bleached coral; dissolution

b) breaking of ionic bonds in halite; spheroidal weathering

c) formation of red horizon in podzolic soils; oxidation

d) creation of kaolinite clay from potassium feldspar; carbonation

e) rounding off of rough edges in soil particles; hydrolysis

f) none of the above are true

Part 3-:

You would expect to find ________ in the ________ horizon(s) of __________ soils.

a) coarse-grained particles from the A and C horizons; B; vertisolic

b) dark brown or black layer with high organic matter content; A; solonetzic

c) concentrated salts; B; chernozemic

d) parent material; C; all

e) mottling; A; gleysolic

Part 4-:

You would expect to find polygonal patterned grounds on the ground surface on which of the following soils:

a) cryosol

b) vertisol

c) brunisol

d) chernozem

e) gleysol

Explanation / Answer

1. e. podsol: parent materials are generally derive from either quartz-rich sands and sandstones or sedimentary debris from magmatic rocks, and bleached due to high precipitation.

2. a Corals are made of CaCo3, which will get dissolved in slightly acidic water.

3.d In C horizon, parent material are present in all cases

4. b and d, occurs due to drought

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