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MEDIUM
ENGLISH
Agriculture
Humic acid is soluble in______________________?
A
Acid
Option A
B
Alkali
Option B
C
Both a & b
Option C
D
Distilled water
Option D
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MEDIUM
ENGLISH
Agriculture
TSP contains____________________?
A
14%
Option A
B
46%P
Option B
C
40%P
Option C
D
50%P
Option D
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MEDIUM
ENGLISH
Agriculture
Which silica mineral is present in soil in abundant quantity____________________?
A
Quartz
Option A
B
Smectite
Option B
C
Gypsum
Option C
D
All the above
Option D
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MEDIUM
ENGLISH
Agriculture
The exact formula for sodium hexametaphosphate is___________________?
A
[(NaPO6)13]
Option A
B
[(NaPO3)13]
Option B
C
[(NaPO2)6]
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The chemical formula for Ammonium acctatc is_____________________?
A
NH3OAC
Option A
B
NH4OAC
Option B
C
NH4AOC
Option C
D
Both b & c
Option D
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MEDIUM
ENGLISH
Agriculture
Boron concentration is irrigation water is considered safe only upto_________________?
A
0.7 ppm
Option A
B
1.5 ppm
Option B
C
2 ppm
Option C
D
3 ppm
Option D
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MEDIUM
ENGLISH
Agriculture
Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?
A
250ºC
Option A
B
1000ºC
Option B
C
550ºC
Option C
D
1250ºC
Option D
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MEDIUM
ENGLISH
Agriculture
While diluting acid always add_____________________?
A
Acid to water
Option A
B
Water to acid
Option B
C
Both a & b
Option C
D
none
Option D
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MEDIUM
ENGLISH
Agriculture
Biochemical reduction of nitrate to nitrite or gaseous nitrogen is called ________________________?
A
Reduction
Option A
B
Oxidation
Option B
C
Denitrification
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
A treeless artic plain is called as___________________?
A
Glaciers
Option A
B
Barren land
Option B
C
Tundra
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Nitrogen gases are involved in_____________________?
A
Sleepy feelings
Option A
B
Hair disease
Option B
C
Mental disease
Option C
D
Acid rains
Option D
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MEDIUM
ENGLISH
Agriculture
Particular matter consists of____________________?
A
Solid and gases
Option A
B
CO2 & N
Option B
C
Solid and liquid
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Soil moisture and ET losses are_________________?
A
Inversely related
Option A
B
Directly related
Option B
C
Not related
Option C
D
Occasionally related
Option D
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MEDIUM
ENGLISH
Agriculture
The salinity can be reduced by the application of___________________?
A
Lime
Option A
B
Sulphuric acid
Option B
C
Urea
Option C
D
All the above
Option D
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MEDIUM
ENGLISH
Agriculture
The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?
A
Mo
Option A
B
Al
Option B
C
Fe
Option C
D
All the above
Option D
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MEDIUM
ENGLISH
Agriculture
Point of zero change means____________________?
A
All the covalent bonds
Option A
B
Zero charge at surface
Option B
C
All are ionic bond
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Part of soil which is in contact with root surface is called___________________?
A
Rhizoshpere
Option A
B
Lithoshpere
Option B
C
Atmoshpere
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Examples of macrobiota are______________________?
A
Enchytrids
Option A
B
Fungus
Option B
C
Bacteria
Option C
D
Plants
Option D
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MEDIUM
ENGLISH
Agriculture
Which bacteria convert nitrite to nitrate___________________?
A
Frankia
Option A
B
Nitrobacter
Option B
C
Pseudomonas
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
In flood rice, snail feed on bacteria called__________________?
A
Helix
Option A
B
Limnea
Option B
C
Azolla
Option C
D
None of the above
Option D
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