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MEDIUM
ENGLISH
Agriculture
Biological Weathering involves:
A
Man and Animals
Option A
B
Higher Plants and Roots
Option B
C
Micro- organisms
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Agriculture
The exact chemical formula of DAP fertilizer is___________________?
A
(NH2) HPO4
Option A
B
NH4H2PO4
Option B
C
NH4H2PO4
Option C
D
Both a & c
Option D
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MEDIUM
ENGLISH
Agriculture
The process of transformation of raw organic matter into humus:
A
Calcification
Option A
B
Horizonation
Option B
C
Illuviation
Option C
D
Humification
Option D
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MEDIUM
ENGLISH
Agriculture
According to WAPDA, the ECe of the salt free soil should remain__________________?
A
< 4 dsm-1
Option A
B
Equal to 4 dsm-1
Option B
C
4-8 dsm-1
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The process of deposition of soil materials in the lower layer is termed as:_________?
A
Illuviation
Option A
B
Eluviation
Option B
C
Podzolization
Option C
D
Laterization
Option D
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MEDIUM
ENGLISH
Agriculture
The EC: SAR and RSC values suggested by WAPDA for 3rd class irrigation water(C,S,R,) are____________________?
A
ECi:<1.5, SAR < 10 & RSC< 2.5
Option A
B
ECi:>1.5, SAR > 10 & RSC> 2.5
Option B
C
ECi:>1.5, SAR 2.5
Option C
D
Both a & b
Option D
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MEDIUM
ENGLISH
Agriculture
The resistance of a soil at various moisture contents to mechanical stresses or manipulations:
A
Soil crusting
Option A
B
Soil consistence
Option B
C
Bulk Density
Option C
D
Both a & c
Option D
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MEDIUM
ENGLISH
Agriculture
The exact formula for calculating the base saturation percentage is_____________________?
A
Bas saturation percentage = CA+Mg+Na / CEC x 100
Option A
B
Bas saturation percentage = /CEC / CA+Mg+Na x 100
Option B
C
Bas saturation percentage = /CEC / CA+Mg x 100
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Water occupied the larger soil pores and moves down readily under the force of gravity. Water in excess of the field capacity is termed:
A
Capillary water
Option A
B
Hygroscopic water
Option B
C
Gravitational water
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The toxicity level of Zn (mg/kg) in plants suggested by some workers is___________________?
A
> 50 mg kg-1
Option A
B
> 10 mg-1
Option B
C
> 400 mg kg-1
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
If the chlorophyll content in plant increases, the solar radiation transmitted:
A
Increases
Option A
B
Decreases
Option B
C
Constant
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
The chemical formula of Dolomite is________________?
A
CaMg (CO3)2
Option A
B
MgCO3
Option B
C
CaCO3
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Fe is trivalent in which of the chemical compound:
A
Fe (NO3)3
Option A
B
Fe2 (NO3)3
Option B
C
Fe3 (NO2)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Auxins promote___________________?
A
Cell elongation
Option A
B
Cell division
Option B
C
Both a & b
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The virus infecting bacteria is called:_________?
A
Bacteroid
Option A
B
Bacteriophage
Option B
C
Bacterin
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Agriculture
Deep percolation from a soil profile is generally measured by a device known as_____________________?
A
Hydrometer
Option A
B
Lysimeter
Option B
C
Thermometer
Option C
D
Tensiometer
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following crop takes N in ammonical form:
A
Wheat
Option A
B
Cotton
Option B
C
Rice
Option C
D
Mustard
Option D
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MEDIUM
ENGLISH
Agriculture
The particlesw density of a mineral soil is about____________________?
A
2750 Kg m-3
Option A
B
2550 Kg m-3
Option B
C
2650 Kg m-3
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
What are diatoms?
A
Soil Fungi
Option A
B
Soil Algae
Option B
C
Soil Bacteria
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
The safe limit of No2 in drinking water is_____________________?
A
10 mg L-1
Option A
B
15 mg L-1
Option B
C
20 mg L-1
Option C
D
None of the above
Option D
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