WRB

Question 1

higher clay contents in subsoil, 5

Answer 1

luvisols, alisols, lixisols, acrisols, albeluvisols

Question 2

limited soil formation, 4

Answer 2

fluvisols, leptosols, regosols, cambisols

Question 3

oxygen deficiency, 3

Answer 3

gleysols, stagnosols, planosols

Question 4

concentrated in Tropics with year round rain, 2

Answer 4

ferralsols, plinthosols

Question 5

Thick dark Ah horizons, 4

Answer 5

Kastanozems,Chernozems, Phaeozems, Umbrisols

Question 6

anthropogenic soils WS, 2

Answer 6

anthrosols, Technosols

Question 7

physical characteristics, 4

Answer 7

andosols, vertisols, nitisols, arenosols

Question 8

Boreal and Polar zone, 3

Answer 8

Cryosols, Histosols, Podzols

Question 9

dry areas except steppe climates, 5

Answer 9

durisols, calcisols, gypsisols, solonchaks, solonetz

Question 10

leptosols

Answer 10

L. leto- thin; fine, limited soil formation

very shallow, over hard rock or highly calcareous material or deeper extremely gravelly soil

Question 11

regosols

Answer 11

G. rego- blanket, limited soil formation

very weakly developed mineral soil in unconsolidated materials, extensive in eroding lands

Question 12

fluvisols

Answer 12

L. Fluvi, river, limited soil formation
weakly developed, Sedimentary stratification, water borne sediments, flood plains rivers, and the shorelines of lakes and seas.

Question 13

cambisols

Answer 13

L. Cambiare, to change, limited soil formation

brownish discoloration below the surface horizon, to mark the beginning of pedogenesis.

Question 14

gleysols

Answer 14

R. clay, oxygen deficiency
wetland soil (hydric soil), saturated with groundwater, reduction of Fe and Mn leads predominantly to grayish hues

Question 15

stagnosols

Answer 15

L. stagnare, to flood, oxygen deficiency

Stagnosols have mottles in the topsoil and subsoil, accompanied in some cases by concretions and/or bleaching.

Question 16

planosols

Answer 16

L. planus, flat, oxygen deficiency

Bleached, light‐colored, eluviated surface horizons that show signs of periodic water‐logging

Question 17

luvisols

Answer 17

L. luere, to wash, higher clay subsoil

migrated from the upper part of the profile, generally grayish in color

Question 18

alisols

Answer 18

L. aluminium, alum, higher clay subsoil

strongly acid, generally unproductive soils, with accumulated high activity clays in their subsoils

Question 19

lixisols

Answer 19

L. lixivia, washed‐out substances. higher clay subsoil
clay has washed out of an upper, down to a lower horizon. The clays are of low activity, and a moderate to high level of base saturation

Question 20

acrisols

Answer 20

L. acris, sour, higher clay subsoil
low base saturation of the cation exchange capacity at pH 7.0
well‐defined B horizon, with a blocky, prismatic, granular or massive structure

Question 21

albeluvisols

Answer 21

L. albus, white, L. eluere, to wash out, higher clay subsoil
a horizon of clay illuviation, an irregular upper boundary, deep tongues of bleached soil material penetrating the clay horizon.