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Free download in PDF Soil Pollution Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(21)
pH meter measures
[A]
H ions activity
[B]
H ions concentration
[C]
Al ions
[D]
All of the above
(22)
Spectrophotometer is used for determination of _____
[A]
N
[B]
P
[C]
K
[D]
All of the above
(23)
KMnO4 (potassium permanganate) is used for __________
[A]
Available nitrogen
[B]
Organic carbon
[C]
Available phosphorus
[D]
Available potassium
Answer: Available nitrogen
(24)
Which instrument is used for the estimation of potash (K)
[A]
Spectrophotometer
[B]
Flamephotometer
[C]
Colorimeter
[D]
Atomic absorption
(25)
Which method used for determination of available phosphorus in acid soil
[A]
Jackson
[B]
Walkley and Black
[C]
Olsen
[D]
Bray
(26)
Olsen method is used for phosphorus estimation
[A]
Acidic soil
[B]
Neutral to alkali soil
[C]
Saline soil
[D]
All of the above
Answer: Neutral to alkali soil
(27)
The unit used for the measurement of electrical conductivity is _____
[A]
dS/m
[B]
uS/cm
[C]
mg/m
[D]
Both A and B
(28)
EC (electrical conductivity) meter measures
[A]
Total salt in soil
[B]
Soluble salt in soil
[C]
Both the salt
[D]
None of the above
Answer: Soluble salt in soil
(29)
Which clay mineral is responsible for cracking in black soil?
[A]
Kaolinite
[B]
Illite
[C]
Vermiculite
[D]
Montmorillonite
(30)
Kanhar soil covers area in Chhattisgarh of total area
[A]
12%
[B]
39%
[C]
27%
[D]
21%
31
Bhata soil covers area in Chhattisgarh of total area
[A]
27%
[B]
39%
[C]
21%
[D]
12%
32
What is called for the movement of surface litter and topsoil from one place to another?
[A]
Soil submerge
[B]
Soil degradation
[C]
Soil erosion
[D]
Soil pollution
33
What is used to convert wastelands into agricultural lands?
[A]
Check dams
[B]
Water purifier
[C]
Rain harvesters
[D]
Gradonies
34
Organic agriculture advocates avoiding the use of_____________________
[A]
Organic manure
[B]
Stored water
[C]
Modern technologies in harvesting
[D]
Chemical fertilizers
Answer: Chemical fertilizers
35
Phosphorus uptake in alkali soil in the form of _____
[A]
H2PO4–
[B]
HPO42–
[C]
PO43–
[D]
H3PO4
36
Maximum N content found in N fertilizer
[A]
Urea
[B]
Sodium nitrate
[C]
Ammonium sulphate
[D]
Anhydrous ammonia
Answer: Anhydrous ammonia
37
The conversion factor for calculating P from P2O5
[A]
P2O5 x 2.29
[B]
P x 0.44
[C]
P x 2.29
[D]
P2O5 x 0.44
38
Which organic fraction not soluble in both acid and alkali
[A]
Fulvic
[B]
Humic
[C]
Humin
[D]
All of the above
39
In munsell colour chart hue 10 represents as ______
[A]
Red
[B]
Black
[C]
Grey
[D]
Yellow
40
Available water held between
[A]
Saturation to wilting point
[B]
Field capacity to hygroscopic coefficient
[C]
Only field capacity
[D]
Field capacity to wilting point
Answer: Field capacity to wilting point
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