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MEDIUM
ENGLISH
Agriculture
The ration of volume of pores in the soil to the total soil volume is referred to as:
A
Pore frequency ratio
Option A
B
Pore density ration
Option B
C
Pore abundance ratio
Option C
D
Pore space ratio
Option D
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MEDIUM
ENGLISH
Agriculture
The term sub-soil generally refers to:
A
Horizon-C
Option A
B
Horizon-A
Option B
C
Horizon-R
Option C
D
Horizon-B
Option D
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MEDIUM
ENGLISH
Agriculture
The abbreviation CEC of soil broadly refers to:
A
Cation storage capacity
Option A
B
Reversible bending of cations
Option B
C
Excess of monovalent cations
Option C
D
Excess of polyvalent cations
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following is a submerged floating hydrophyte?
A
Tpha
Option A
B
Trapa
Option B
C
Potamogeton
Option C
D
Ceratophyllum
Option D
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MEDIUM
ENGLISH
Agriculture
Mark the rooted submerged hydrophyte:
A
Marsilea
Option A
B
Utricularia
Option B
C
Vallisneria
Option C
D
Monochoria
Option D
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MEDIUM
ENGLISH
Agriculture
Humus is:
A
Fully decomposed organic matter only
Option A
B
Party decomposed organic matter + CO2
Option B
C
Minerals and fully decomposed organic matter
Option C
D
Partly decomposed organic matter + mineral + water
Option D
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MEDIUM
ENGLISH
Agriculture
The term ‘chesard’ refers to:
A
Gravitational water
Option A
B
Capillary water
Option B
C
Run off water
Option C
D
Water vapour
Option D
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MEDIUM
ENGLISH
Agriculture
The permanent aggregates of soil are called:
A
Blocks
Option A
B
Clods
Option B
C
Peds
Option C
D
Plates
Option D
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MEDIUM
ENGLISH
Agriculture
Soil particles of size 0.03 mm belong to the class of:
A
Coarse sand
Option A
B
Silt
Option B
C
Fine sand
Option C
D
Clay
Option D
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MEDIUM
ENGLISH
Agriculture
What is the best pH of soil for cultivation?
A
3.8-5.4
Option A
B
6.5-7.5
Option B
C
4.5-8.5`
Option C
D
5.5-6.5
Option D
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MEDIUM
ENGLISH
Agriculture
The phenomenon describing the formation of a blue-grey coloured layer at the bottom of the solum due to ferrous compounds is:
A
Gleization
Option A
B
Mineralization
Option B
C
Laterization
Option C
D
Podsolization
Option D
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MEDIUM
ENGLISH
Agriculture
Soils transported by air is called:
A
Eolian
Option A
B
Aerial
Option B
C
Residual
Option C
D
Colluvial
Option D
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MEDIUM
ENGLISH
Agriculture
Soil formation is initiated by the phenomenon of:
A
Weathering
Option A
B
Gleization
Option B
C
Laterization
Option C
D
Pedogenesis
Option D
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MEDIUM
ENGLISH
Agriculture
Soils having sub-optimum concentration of nutrient solution are called:
A
Hypotrophic
Option A
B
Eutrophic
Option B
C
Heterotrophic
Option C
D
Oligotrophic
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following horizons is generally referred to as the illuvial zone?
A
Horizon-B
Option A
B
Horizon-A
Option B
C
Horizon-O
Option C
D
Horizon-C
Option D
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MEDIUM
ENGLISH
Agriculture
The soil cover of the earth lies between:
A
Atmosphere and lithosphere
Option A
B
Lithosphere and biosphere
Option B
C
Atmosphere and hydrosphere
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Agriculture
The hydrologic factor refers to:
A
Atmosphere
Option A
B
Water
Option B
C
Gravitational water
Option C
D
Snow
Option D
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MEDIUM
ENGLISH
Agriculture
The grasslands do not possess the horizon layers:
A
A00
Option A
B
A1
Option B
C
Both (a) & (b)
Option C
D
A00 and A1
Option D
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MEDIUM
ENGLISH
Agriculture
Soils transported by water are called:
A
Alluvial
Option A
B
Colluvial
Option B
C
Residual
Option C
D
Eolian
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following is not taken into account in the study of ecology?
A
Statistics
Option A
B
Radiation
Option B
C
Embryology
Option C
D
All of these
Option D
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