SOIL 1113- CHAPTERS 1-4 EXAM
QUESTIONS AND ANSWERS 100% PASS
2026/2027
What is the Soil? - ANS Soil- Loose mineral and /or organic material. That are affected by
physical, chemical, and /or biological processes
chemical composition of a young soil is normally determined by its - ANS parent material
Assuming all other factors except climate are constant, in which of the following areas are you
more likely to find organic parent materials? - ANS Bering Sea Wildlife Refuge in Alaska)
What can have a definite chemical formula? - ANS Minerals
Which of the following is not an active factor of soil formation? - ANS Topography
Which of the following is always true about clay soils? the soil is red → the sizes of the particles
are <0.002 mm, the soil is easier to cultivate than a sandy soil) - ANS the sizes of the particles
are <0.002 mm,
What color of soils generally means that the soil has good fertility status. - ANS Black
What structure allows more effective downward growth or roots in the soil profile. -
ANS Blocky
2026/2027 ALLRIGHTS RESERVED
1
, Loamy sand has a (higher, lower) specific surface than sandy clay. - ANS Lower
A dead cor leaf that falls on the soil is automatically considered as part of soil organic
matter.(True, False) - ANS False
we say "stable aggregates", we are referring to soil aggregates that (don't easily disintegrate
when immediately immersed in water, do not easily get moved). - ANS Disintegrate when
immediately immersed in water
Clay has a (higher, lower) particle surface area than sandy clay. Note: same volume of clay and
sandy clay - ANS Higher
As bulk density increases, the ability of the soil to allow effective root growth decreases. (True,
False) - ANS True
(Platy, Granular) structure allows more effective downward movement of water in the soil
profile. - ANS Granular
Which of the following B horizons has gray as the dominant color? (Bg, Bt Bss) - ANS Bg
Which of the following soils will need more frequent application of irrigation water? (Sand,
Sandy Clay) - ANS Sand
(Gray, Black, Red) color of soils generally means that the soil has good fertility status. -
ANS Black
If the surface horizon is composed largely of organic materials, it should designated as (A, O) -
ANS O
2026/2027 ALLRIGHTS RESERVED
2
QUESTIONS AND ANSWERS 100% PASS
2026/2027
What is the Soil? - ANS Soil- Loose mineral and /or organic material. That are affected by
physical, chemical, and /or biological processes
chemical composition of a young soil is normally determined by its - ANS parent material
Assuming all other factors except climate are constant, in which of the following areas are you
more likely to find organic parent materials? - ANS Bering Sea Wildlife Refuge in Alaska)
What can have a definite chemical formula? - ANS Minerals
Which of the following is not an active factor of soil formation? - ANS Topography
Which of the following is always true about clay soils? the soil is red → the sizes of the particles
are <0.002 mm, the soil is easier to cultivate than a sandy soil) - ANS the sizes of the particles
are <0.002 mm,
What color of soils generally means that the soil has good fertility status. - ANS Black
What structure allows more effective downward growth or roots in the soil profile. -
ANS Blocky
2026/2027 ALLRIGHTS RESERVED
1
, Loamy sand has a (higher, lower) specific surface than sandy clay. - ANS Lower
A dead cor leaf that falls on the soil is automatically considered as part of soil organic
matter.(True, False) - ANS False
we say "stable aggregates", we are referring to soil aggregates that (don't easily disintegrate
when immediately immersed in water, do not easily get moved). - ANS Disintegrate when
immediately immersed in water
Clay has a (higher, lower) particle surface area than sandy clay. Note: same volume of clay and
sandy clay - ANS Higher
As bulk density increases, the ability of the soil to allow effective root growth decreases. (True,
False) - ANS True
(Platy, Granular) structure allows more effective downward movement of water in the soil
profile. - ANS Granular
Which of the following B horizons has gray as the dominant color? (Bg, Bt Bss) - ANS Bg
Which of the following soils will need more frequent application of irrigation water? (Sand,
Sandy Clay) - ANS Sand
(Gray, Black, Red) color of soils generally means that the soil has good fertility status. -
ANS Black
If the surface horizon is composed largely of organic materials, it should designated as (A, O) -
ANS O
2026/2027 ALLRIGHTS RESERVED
2
