Soil Science MCQs

Option A: Treatment of shifting sand-dunes by fixing barriers in parallel stripes or in a chess-board design, using the local shrub material starting from the crest of the dunes to protect the seedlings from burial or exposure by the blowing of sand.

Option B: Protection against biotic interference

Option C: Both a & b

Option D: None of these

Correct Answer: Both a & b ✔

Option A: Contributing to global warming

Option B: Carbon storage in soils

Option C: loss of biodiversity

Option D: All of these

Correct Answer: All of these ✔

Option A: Mar-21

Option B: March-2

Option C: Apr-22

Option D: May-22

Correct Answer: May-22 ✔

Option A: Provision of surface-cover that intercepts the rain before hitting the soil.

Option B: Reducing the amount of runoff by promoting infiltration.

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: Inceptisols, Mollisols

Option B: Alfisols, Entisols

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: Balance use of NPK fertilizers according to the need of crops.

Option B: Following proper crop rotation (shallow rooted and deep root crops) in the cropping session.

Option C: Regular use of FYM, Composts, acidic mulches, Green manures and Organic fertilizers to increase OM content of Soil.

Option D: All of the above

Correct Answer: All of the above ✔

Option A: 12.6 mha

Option B: 5.7 mha

Option C: 8.2 mha

Option D: None of the above

Correct Answer: 5.7 mha ✔

Option A: Installation of tube-wells for irrigation and vertical drainage.

Option B: Planning and designing of future canals on proper lines.

Option C: Planting of eucalyptus in water-logged areas.

Option D: All of these

Correct Answer: All of these ✔

Option A: 4.11 mha

Option B: 5.16 mha

Option C: 22.5 mha

Option D: The above statement is wrong

Correct Answer: 4.11 mha ✔

Option A: Mar-3

Option B: Mar-15

Option C: March-21

Option D: None of the above

Correct Answer: March-21 ✔

Option A: Rainsplash erosion

Option B: Sheet erosion

Option C: Rill erosion

Option D: Gully Erosion

Correct Answer: Gully Erosion ✔

Option A: Pakistan

Option B: Germany

Option C: Austria

Option D: Both a & b

Correct Answer: Austria ✔

Option A: Soil testing

Option B: Plant tissue testing

Option C: Aspergillus niger test

Option D: All of these

Correct Answer: All of these ✔

Option A: Traffic soles

Option B: Plough soles

Option C: Compaction

Option D: Pudding

Correct Answer: Compaction ✔

Option A: Specialization

Option B: Speciation

Option C: Smog

Option D: None of these

Correct Answer: Speciation ✔

Option A: Cetyle alcohol

Option B: Methyle alcohol

Option C: both A and B

Option D: None of these

Correct Answer: A. Cetyle alcoho ✔

Option A: Indiscriminate felling of trees

Option B: Over grazing

Option C: Mismanagement of irrigation syste

Option D: All of these

Correct Answer: All of these ✔

Option A: Minimize run-off  & store surplus water

Option B: Use non-arable lands effectively

Option C: Leave barren lands uncultivable to support desrtification degradation

Option D: Construction of mini dams & ponds to store water for live stock & other porposes

Correct Answer: Leave barren lands uncultivable to support desrtification degradation ✔

Option A: Rain splash & sheet erosion

Option B: Rill & Gully erosion

Option C: Normal (geological) erosion & Accelerated erosion

Option D: All of these

Correct Answer: Normal (geological) erosion & Accelerated erosion ✔

Option A: Gully erosion

Option B: Sheet erosio.

Option C: Stream bank erosion

Option D: None of these

Correct Answer: None of these ✔

Option A: Desert of Kharan

Option B: Noshki

Option C: Both A & B

Option D: Qilla SaifUllah

Correct Answer: Both A & B ✔

Option A: Primary nutrients

Option B: Minor nutrients

Option C: Excellent nutrients

Option D: None of these

Correct Answer: None of these ✔

Option A: Micro elements

Option B: Trace elements

Option C: Both A & B

Option D: None of these

Correct Answer: Both A & B ✔

Option A: Detachement of soil

Option B: Transportation

Option C: both A & B

Option D: None of these

Correct Answer: both A & B ✔

Option A: Sedimentary rocks

Option B: Metamorphic rocks

Option C: Aqueous rocks

Option D: both A & C

Correct Answer: both A & C ✔

Option A: English

Option B: Greek

Option C: Latin

Option D: None of the above

Correct Answer: Latin ✔

Option A: Kaolinite

Option B: Montmorillonite

Option C: Vermiculite

Option D: Illite

Correct Answer: Vermiculite ✔

Option A: Fungi

Option B: Bacteria from atmosphere

Option C: Plants

Option D: None of these

Correct Answer: None of these ✔

Option A: Six sided arrangement

Option B: Eight sided arrangement

Option C: Four sided arrangement

Option D: both A & B

Correct Answer: Four sided arrangement ✔

Option A: Mo

Option B: Al

Option C: Zn

Option D: Mg

Correct Answer: Al ✔

Option A: Winogradsky & R. Morphy

Option B: Winogradsky & Dokuchaev

Option C: Bennett & Dokuchaev

Option D: both A & B

Correct Answer: Bennett & Dokuchaev ✔

Option A: Corn

Option B: Rice

Option C: Carrot

Option D: Cotton

Correct Answer: Cotton ✔

Option A: Biopores

Option B: Diameter

Option C: Mesopores

Option D: Microspores

Correct Answer: Biopores ✔

Option A: 259,710 km2

Option B: 269,810 km2

Option C: 278,910 km2

Option D: None of these

Correct Answer: A. 259,710 km² ✔

Option A: Alluvial soil

Option B: Aeolian soil

Option C: Transported soil

Option D: None of these

Correct Answer: Transported soil ✔

Option A: 1624

Option B: 1724

Option C: 1824

Option D: 1924

Correct Answer: 1924 ✔

Option A: Ammonification

Option B: Nitrification

Option C: Nitosomonas

Option D: Nitrobacteria

Correct Answer: Nitrobacteria ✔

Option A: Sand soil

Option B: Silt soil

Option C: Forest soil 

Option D: None of these

Correct Answer: Forest soil  ✔

Option A: N

Option B: P

Option C: K

Option D: B

Correct Answer: B ✔

Option A: 0.22

Option B: 0.33

Option C: 0.44

Option D: None of these

Correct Answer: 0.44 ✔

Option A: Soil texture

Option B: Soil structure

Option C: Layers of soil

Option D: All of these

Correct Answer: Layers of soil ✔

Option A: Alkalization

Option B: Desalinization

Option C: Salinization

Option D: All off these

Correct Answer: Salinization ✔

Option A: Aridisols

Option B: Entisols

Option C: Vertisols

Option D: Inceptisols

Correct Answer: Aridisols ✔

Option A: Dynamo metamorphic

Option B: Thermo metamorphic

Option C: Hydro metamorphic

Option D: Not sure

Correct Answer: Dynamo metamorphic ✔

Option A: Acidic

Option B: Acidic & Alkaline

Option C: Alkaline

Option D: Calcareous

Correct Answer: Alkaline ✔

Option A: Regolith

Option B: Solam

Option C: Inner core

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Pedologist

Option B: Soil chemist

Option C: Edaphologists

Option D: agronomist

Correct Answer: Edaphologists ✔

Option A: Infiltration

Option B: Percolation

Option C: Leaching

Option D: Seeping

Correct Answer: Leaching ✔

Option A: Field capacity to super available water

Option B: Only field capacity

Option C: Field capacity to wilting point

Option D: All of the above

Correct Answer: Field capacity to wilting point ✔

Option A: Marble

Option B: Granite

Option C: Sand stone

Option D: both A & B

Correct Answer: both A & B ✔

Option A: Ca

Option B: P

Option C: B

Option D: Both A & C

Correct Answer: B ✔

Option A: Aluminum

Option B: Silicon

Option C: Sodium

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Clay

Option B: Humus

Option C: both A & B

Option D: Only Clay

Correct Answer: Humus ✔

Option A: Beijerinck

Option B: Fred

Option C: P.K dey

Option D: None of the above

Correct Answer: P.K dey ✔

Option A: Actinomycetes

Option B: Fungi

Option C: Algae

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Magnesium

Option B: Phosphorus

Option C: Potassium

Option D: All of the above

Correct Answer: Potassium ✔

Option A: Hydrogen

Option B: Oxygen

Option C: Both A & B

Option D: None of these

Correct Answer: Both A & B ✔

Option A: Umbric epipedon

Option B: Melanic epipedon

Option C: Mollic epipedon

Option D: Ochric epipedon

Correct Answer: Ochric epipedon ✔

Option A: 72 %

Option B: 58%

Option C: 62 %

Option D: Al of the above

Correct Answer: 58% ✔

Option A: Tetrahedral sheet

Option B: Triple octahedral sheet

Option C: Octahedral sheet

Option D: Both A & C

Correct Answer: Both A & C ✔

Option A: Positive

Option B: Negative

Option C: Zero

Option D: All of the above

Correct Answer: Negative ✔

Option A: Aridisols

Option B: Alfisols

Option C: Mollisols

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Sandy soils have  higher sand percentage with more water holding capacity

Option B: The relative percentage of sand, silt, clay is soil texture.

Option C: Soil texture influences behavior of soil.

Option D: The arrangement of soil aggregates is called soil structure.

Correct Answer: Sandy soils have  higher sand percentage with more water holding capacity ✔

Option A: Physical

Option B: chemical

Option C: Biological

Option D: both A & B

Correct Answer: chemical ✔

Option A: Reduced soil disturbance through no-till or minimum till

Option B: Residue return to keep at least 30% of soil covered

Option C: Crop rotations for better utilization of available water & nutrients

Option D: all of the above

Correct Answer: all of the above ✔

Option A: Water distribution

Option B: Water management

Option C: both A & B

Option D: None of the above

Correct Answer: Water management ✔

Option A: 65 – 75%

Option B: 72 – 62%

Option C: 85 – 95%

Option D: 75% – 80%

Correct Answer: C. 85 – 95% ✔

Option A: Macro pores

Option B: Meso pores & Micro pores

Option C: Both A & B

Option D: The above statement is wrong

Correct Answer: Both A & B ✔

Option A: 12

Option B: 13

Option C: 14

Option D: 09

Correct Answer: 12 ✔

Option A: Sand

Option B: Silt

Option C: Clay

Option D: None of the above

Correct Answer: Silt ✔

Option A: Reconnaissance survey

Option B: Detailed soil survey

Option C: Soel survay

Option D: The answer of statement is not in options

Correct Answer: The answer of statement is not in options ✔

Option A: Alfisols

Option B: Ultisols

Option C: Vertisols

Option D: None of the above

Correct Answer: Vertisols ✔

Option A: Andisols, Gelisols, Histosols, Spodosols, Oxisols, Ultisols

Option B: Entisols, Inceptisols, Aridisols, Alfisols, Mollisols, Vertisols

Option C: Andisols, Aridisols, Histosols, Vertisols, Regosols, Libosols

Option D: The above statement is wrong

Correct Answer: Entisols, Inceptisols, Aridisols, Alfisols, Mollisols, Vertisols ✔

Option A: Nitrogen

Option B: Potassium

Option C: Aluminium

Option D: Calcium

Correct Answer: Aluminium ✔

Option A: Sub-surface drainage

Option B: Surface operations

Option C: Drainage

Option D: All of the above

Correct Answer: Surface operations ✔

Option A: Green manure increases the availability in organic from to the next crop

Option B: It does not affect the availability of phosphorous to succeeding crop 

Option C: Greater amount of phosphorus is taken up and converted into organic form, which is released on decomposition of green matter

Option D: It fixes the P2O5 through humus and reduces the availability..

Correct Answer: It does not affect the availability of phosphorous to succeeding crop  ✔

Option A: Water quality determination

Option B: Aquifer location

Option C: Water regulation

Option D: Installation of wells

Correct Answer: Aquifer location ✔

Option A: 24%

Option B: 25%

Option C: 19.5%

Option D: 30%

Correct Answer: 19.5% ✔

Option A: 1

Option B: 2

Option C: 2.5 – 3.5

Option D: 0.5

Correct Answer: 0.5 ✔

A. Extremely low
B. Extremely high
C. Very little
D. None of these

Submitted by: Shafiq Rehman

Correct Answer: B. Extremely high ✔

Option A: From the field with immediate application of fertilizer or amendments

Option B: Field with upper white layer of salts

Option C: Boundaries of the field

Option D: None of these

Correct Answer: None of these ✔

Option A: Rain splash rill erosion

Option B: Stream bank erosion

Option C: Sheet erosion

Option D: Gully erosion

Correct Answer: Sheet erosion ✔

Option A: 100 mm

Option B: >70 mm

Option C: <50 mm

Option D: None of these

Correct Answer: <50 mm ✔

A. Direct evaporation from the soil & transpiration from vegetation
B. down-ward drainage
C. Hydroponics loss
D. Surface run-off from the field

Submitted by: Shafiq Rehman

Correct Answer: C. Hydroponics loss ✔

Option A: 12.5 % -12.5 % – 75%

Option B: 64.7 % – 27.4 % – 7.9 %

Option C: none of A & B

Option D: 7.9% – 27.7 % – 64.4

Correct Answer: B. 64.7 % – 27.4 % – 7.9 % ✔

Option A: 64 %

Option B: 79 %

Option C: 75 %

Option D: 73 %

Correct Answer: 75 % ✔

Option A: 23 %

Option B: 2.3 %

Option C: 17 %

Option D: 1.7 %

Correct Answer: 2.3 % ✔

Option A: Multan

Option B: Sawat

Option C: Lasbella

Option D: Shikarpoor

Correct Answer: Multan ✔

Option A: Faisalabad

Option B: Jaranwala

Option C: Haripur

Option D: All of these

Correct Answer: All of these ✔

Option A: DAP

Option B: SSP

Option C: Nitrophos

Option D: All of Above

Correct Answer: All of Above ✔

Option A: Provides energy for the microbial

Option B: Maintains the productivity of soil

Option C: Gives structure to the soil

Option D: All of these

Correct Answer: All of these ✔

Option A: Hymatomelanic  acid & Humin

Option B: Humic acid & Fulvic acid

Option C: both A & B

Option D: None of these

Correct Answer: both A & B ✔

Option A: Ca

Option B: Mg

Option C: N

Option D: None of the above

Correct Answer: N ✔

Option A: An area of soil from root surface to 5 cm

Option B: Root surface

Option C: Area within the roots

Option D: All of them

Correct Answer: Root surface ✔

Option A: Cetyle alcohol

Option B: Methyle alcohol

Option C: both A and B

Option D: None of these

Correct Answer: Cetyle alcohol ✔

Option A: Depth of molten magma

Option B: Composition of molten magma

Option C: Both A and B

Option D: Composition can not be determined.

Correct Answer: Composition of molten magma ✔

Option A: Actinomycetes

Option B: Bacteria

Option C: Basidiomycetes

Option D: Fungi imperfecti

Correct Answer: Fungi imperfecti ✔

Option A: Gleization

Option B: Lessivage

Option C: Laterization

Option D: The correct option is not present above

Correct Answer: The correct option is not present above ✔

Option A: 74 %

Option B: 54 %

Option C: 62.5 %

Option D: 34%

Correct Answer: 74 % ✔

Option A: 110 0C

Option B: 120 0C

Option C: both A and B

Option D: 105 0C

Correct Answer: D. 105 ⁰C ✔