#82.
A square meter of land dug to a depth that nearly touches the bedrock.
A
Aquifer
B
Parent material
C
Pedon
D
Profile
Answer: Pedon
#83.
Mature soil have the following horizons:
A
AB
B
BC
C
ABC
D
AC
Answer: ABC
#84.
Young soils have the following horizons:
A
ABCD
B
ABC
C
AC
D
AB
Answer: AC
#85.
The solum is composed of these horizons:
A
ABC
B
ABCR
C
AB
D
BC
Answer: AB
#86.
The wise use of land, especially with respect to soil erosion control.
A
Sustainable agriculture
B
Soil capability
C
Soil management
D
Soil conservation
Answer: Soil conservation
#87.
The process by which soil nutrients are washed down by water from the root zone of the plants.
A
Leaching
B
volatilization
C
Denitrification
D
Crop removal
Answer: Leaching
#88.
Growing of several crop species on a piece of land in spatial arrangement.
A
Monocropping
B
Intercropping
C
Multiple cropping
D
Alley cropping
Answer: Multiple cropping
#89.
Biological control of soil erosion.
A
Rockwalling
B
Contouring
C
Strip cropping
D
Terracing
Answer: Strip cropping
#90.
Mechanical method of controlling soil erosion.
A
Alley cropping
B
Strip cropping
C
Terracing
D
Mulching
Answer: Terracing
#91.
Soils of the arid regions.
A
Oxisol
B
Alfisol
C
Aridisol
D
Vertisol
Answer: Aridisol
#92.
Uniform removal of thin layer from a given area of land.
A
Rill erosion
B
Sheet erosion
C
Gully erosion
D
Stream erosion
Answer: Sheet erosion
#93.
The soil order of organic soils.
A
Andisols
B
Entisols
C
Mollisols
D
Histosols
Answer: Histosols
#94.
A practice that could contribute to soil erosion.
A
Organic matter addition
B
Liming
C
Fertilizer application
D
Logging
Answer: Logging
#95.
The practice of spreading plant residues (leaves, stalks, stovers, straws and roots) on the ground to
cover the surface of the soil during rainy days.
A
Cover cropping
B
Mulching
C
Fallowing
D
Green manuring
Answer: Mulching
#96.
Used to predict the severity of erosion from farm fields
A
Water loss equation
B
Growth rate
C
Universal soil loss equation (USLE)
D
Soil loss measurement equation
Answer: Universal soil loss equation (USLE)
#97.
An off-site ill of soil erosion
A
Decrease in soil depth
B
Loss of applied fertilizer
C
Loss of soil
D
Siltation of irrigation canal
Answer: Siltation of irrigation canal
#98.
Soil materials can not be moved or transported by water unless they are _______.
A
Dispersed and cultivated
B
Dispersed and detached
C
Dispersed and covered with mulch
D
Dispersed and harrowed
Answer: Dispersed and detached
#99.
On-site ills of soil erosion.
A
Siltation of paddy fields
B
Siltation of irrigation dams
C
Loss of organic matter
D
Destruction of infrastructure
Answer: Loss of organic matter
#100.
Soils exhibiting moderate development.
A
Entisol
B
Alfisol
C
Inceptisol
D
Ultisol
Answer: Inceptisol
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