subsoils

Question 1

a

Answer 1

highly decomposed organic materials

Question 2

b

Answer 2

buried soil horizon

Question 3

c

Answer 3

concretions — grains, pellets, or nodules of various sizes, shapes, and colors consisting of concentrated compounds or cemented soil grains

Question 4

d

Answer 4

physical root restriction

Question 5

e

Answer 5

organic material of intermediate decomposition

Question 6

f

Answer 6

frozen soil

Question 7

g

Answer 7

strong gleying — soil that is formed under poor drainage, resulting in the reduction of iron and other elements and in gray colors and mottles

Question 8

h

Answer 8

alluvial accumulation of organic matter

Question 9

i

Answer 9

slightly decomposed organic matter

Question 10

k

Answer 10

accumulation of carbonates

Question 11

m

Answer 11

cementation

Question 12

n

Answer 12

accumulation of sodium

Question 13

o

Answer 13

residual accumulation of sesquioxides

Question 14

p

Answer 14

tillage or other disturbance

Question 15

q

Answer 15

accumulation of silica

Question 16

r

Answer 16

weathered or soft rock

Question 17

s

Answer 17

alluvial accumulation of sesquioxides and organic matter

Question 18

t

Answer 18

accumulation of alluvial clay

Question 19

v

Answer 19

plinthite

Question 20

w

Answer 20

development of color or structure

Question 21

x

Answer 21

fragipan character

Question 22

y

Answer 22

accumulation of gypsum

Question 23

z

Answer 23

accumulation of salts more soluble than gypsum