Soil Science MCQs

Option A: Agregation of soil particles

Option B: Cementing of soil particles

Option C: Dispersion of soil particles

Option D: All the above

Correct Answer: Dispersion of soil particles ✔

Option A: Wind

Option B: Air

Option C: Water

Option D: All the above

Correct Answer: Wind ✔

Option A: Hydrometer

Option B: Flame photometer

Option C: Spectrophotometer

Option D: All the above

Correct Answer: Flame photometer ✔

Option A: Native element

Option B: Secondary element

Option C: Primary element

Option D: Heavy metal

Correct Answer: Native element ✔

Option A: Glycophytes

Option B: Halophytes

Option C: Xerophytes

Option D: All the above

Correct Answer: Halophytes ✔

Option A: 6.3 m ha

Option B: 5.0 m ha

Option C: 12.3 m ha

Option D: 10.5 m ha

Correct Answer: 6.3 m ha ✔

Option A: SO4

Option B: HCO3

Option C: Cl–

Option D: None of the above

Correct Answer: C. Cl^– ✔

Option A: Salinity

Option B: Property of polluted material

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: Fe & Ni

Option B: Mg & Ni

Option C: Cu & Ni

Option D: None of these

Correct Answer: Fe & Ni ✔

Option A: O2 + O =O3

Option B: O3 + O

Option C: O2 O

Option D: None of the above

Correct Answer: O2 + O =O3 ✔

Option A: 70-80 cm

Option B: 150-70 cm

Option C: 0-50 cm

Option D: None of the above

Correct Answer: 0-50 cm ✔

Option A: SAR=Na / [(Ca+Mg)1/2] Na x 2

Option B: SAR=Na / CEC x 100

Option C: SAR=Na / CEC x 100

Option D: None of these

Correct Answer: SAR=Na / [(Ca+Mg)1/2] Na x 2 ✔

Option A: Liquid limit

Option B: Plastic limit

Option C: Sticky limit

Option D: Alter berg limit

Correct Answer: Sticky limit ✔

Option A: Nickle

Option B: Natrium

Option C: Neon

Option D: None of these

Correct Answer: None of these ✔

Option A: Hydraulic potential

Option B: Hydraulic conductivity

Option C: Negative soil water potential

Option D: All the above

Correct Answer: Negative soil water potential ✔

Option A: Sodic soil

Option B: Saline soil

Option C: Acidic soil

Option D: None of the above

Correct Answer: Sodic soil ✔

Option A: Normal

Option B: Molal

Option C: Molar

Option D: None of the above

Correct Answer: Molar ✔

Option A: CO2 + H2O light O2 + (CH3O)

Option B: CaCO3 + 2HCl CaCl2 H2O+CO3

Option C: ((CH2O) + O2 CO2 + H2O)

Option D: None of the above

Correct Answer: CO2 + H2O light O2 + (CH3O) ✔

Option A: Non-expending

Option B: Expending

Option C: None or little expending

Option D: None of the above

Correct Answer: None or little expending ✔

Option A: AL (OH)2

Option B: Fe2O3

Option C: Fe OOH

Option D: None of the above

Correct Answer: Fe2O3 ✔

Option A: 0%

Option B: 3%

Option C: 5%

Option D: 10%

Correct Answer: 3% ✔

A. Between 7.5 to 8.5
B. 8.5
D. None of the above

Correct Answer: Between 7.5 to 8.5 ✔

Option A: Alkaline

Option B: Neutral

Option C: Acidic

Option D: None of the above

Correct Answer: Alkaline ✔

Option A: dsm-1

Option B: mmhos/m

Option C: ms/cm

Option D: Al the above

Correct Answer: dsm-1 ✔

Option A: Uric acid

Option B: Biurct (NH2CONH CONH2 H2O)

Option C: Diuret

Option D: Both b & c

Correct Answer: Biurct (NH2CONH CONH2 H2O) ✔

Option A: 3-15 meq/100g CEC

Option B: 40 meq/100g CEC

Option C: 50 meq/100g CEC

Option D: None of the above

Correct Answer: 3-15 meq/100g CEC ✔

Option A: Capillary

Option B: Hydroscopic

Option C: Available

Option D: Gravitational

Correct Answer: Hydroscopic ✔

Option A: pH

Option B: SAP

Option C: EC

Option D: RSC

Correct Answer: pH ✔

Option A: 18% N & 46% P2O5

Option B: 46%N & 18%P2O3

Option C: 100%P2O3

Option D: 50%P2O3

Correct Answer: 18% N & 46% P2O5 ✔

Option A: <7

Option B: >7

Option C: >7.0

Option D: 8.5

Correct Answer: <7 ✔

Option A: o.453

Option B: 0.643

Option C: 0.436

Option D: None of the above

Correct Answer: 0.436 ✔

Option A: TSP

Option B: DAP

Option C: MAP

Option D: None of the above

Correct Answer: MAP ✔

Option A: 2:1

Option B: 4:1

Option C: 12:1

Option D: 20:1

Correct Answer: 4:1 ✔

A. 60
C. 50-70
D. 80-90

Correct Answer: 80-90 ✔

A. >4dsm-1
B. 0.4dsm-1
D. 0.4 4.0 dsm-1

Correct Answer: >4dsm-1 ✔

Option A: Less than 7

Option B: Neutral

Option C: Greater than 7

Option D: Basis

Correct Answer: Less than 7 ✔

Option A: OH1 HCO2

Option B: SO4-2 OH

Option C: CO3-2 SO4-2

Option D: All the above

Correct Answer: All the above ✔

Option A: Complexion

Option B: Ligand

Option C: Chelate

Option D: Potential

Correct Answer: Ligand ✔

Option A: N,P,K

Option B: C,H,O

Option C: Ca,Mg,S

Option D: All the above

Correct Answer: Ca,Mg,S ✔

Option A: Mass water content

Option B: Macro pores

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: 0.02mm

Option B: 0.2mm

Option C: 0.002mm

Option D: 2mm

Correct Answer: 0.02mm ✔

Option A: Clay

Option B: Silk

Option C: Water

Option D: Smecitie

Correct Answer: Smecitie ✔

Option A: Spectrophotometer

Option B: Boiling

Option C: X-ray diffraction

Option D: Breaking

Correct Answer: X-ray diffraction ✔

Option A: B-horizon

Option B: C-horizon

Option C: U-horizon

Option D: Surface horizon

Correct Answer: Surface horizon ✔

Option A: Climate

Option B: Parent material

Option C: Organisms

Option D: Temperature

Correct Answer: Parent material ✔

Option A: Pyruive acid

Option B: 2-ketoghconic acid

Option C: Carbon dioxide

Option D: Phospheric acid

Correct Answer: 2-ketoghconic acid ✔

Option A: Water

Option B: Petrol

Option C: Soil

Option D: Gas

Correct Answer: Gas ✔

Option A: Granulation

Option B: Tillage

Option C: Tilth

Option D: All the above

Correct Answer: Tilth ✔

Option A: Lysimeter

Option B: Hydrometer

Option C: Thermometer

Option D: All the above

Correct Answer: Hydrometer ✔

Option A: Clay

Option B: Silt

Option C: Sand

Option D: Gravel

Correct Answer: Gravel ✔

Option A: Iron

Option B: Kaolinite

Option C: Salt

Option D: None of the above

Correct Answer: Kaolinite ✔

Option A: Lessivage

Option B: Pedoturbation

Option C: Leaching

Option D: Enrichment

Correct Answer: Pedoturbation ✔

Option A: Adhesion

Option B: Cohesion

Option C: Vander wall

Option D: All the above

Correct Answer: Cohesion ✔

Option A: Soil

Option B: Water

Option C: Volcanic ash

Option D: Consolidated ash

Correct Answer: Volcanic ash ✔

Option A: Purr ice

Option B: Mafic

Option C: Scoria

Option D: Felsic

Correct Answer: Scoria ✔

Option A: 2-10 m

Option B: Few m 10 m

Option C: Few cm 10 cm

Option D: 10-12 cm

Correct Answer: 2-10 m ✔

Option A: Course-grained like

Option B: Fine grained

Option C: Large-Glassy

Option D: Phenocryst

Correct Answer: Fine grained ✔

Option A: fe

Option B: Quartz

Option C: Buiotitic

Option D: Quartz & Feldspars

Correct Answer: Quartz ✔

Option A: Intrusive igneous

Option B: Metamorphic

Option C: Sedimentary

Option D: Extrusive igneous rock

Correct Answer: Intrusive igneous ✔

Option A: 100

Option B: 60

Option C: 30

Option D: None of the above

Correct Answer: 60 ✔

Option A: Igneous

Option B: Metamorphic

Option C: Apatite

Option D: None of the above

Correct Answer: Apatite ✔

Option A: Stone

Option B: Name of mountain

Option C: Metamorphic rock

Option D: None of the above

Correct Answer: Metamorphic rock ✔

Option A: Igneous rocks

Option B: Sedimentary rocks

Option C: Both a & b

Option D: Cleavage

Correct Answer: Both a & b ✔

Option A: 0.625 mm

Option B: 0.004 mm

Option C: 0.0625 mm

Option D: Both b & c

Correct Answer: Both b & c ✔

Option A: Sand stone

Option B: Classics

Option C: Igneous

Option D: Greis

Correct Answer: Classics ✔

Option A: Acidic

Option B: Basic

Option C: Both a & b

Option D: None of the above

Correct Answer: Acidic ✔

Option A: 5.0 to 6.5

Option B: 6.5 to 7.5

Option C: 7.5 to 8.5

Option D: 8.5 to 9.5

Correct Answer: 7.5 to 8.5 ✔

Option A: Zone of atmosphere

Option B: Zone of earth crust

Option C: Zone of ozone

Option D: Zone of water

Correct Answer: Zone of earth crust ✔

Option A: 4.5 billion years

Option B: 4 billion years

Option C: 1 billion years

Option D: 6 billion years

Correct Answer: 4.5 billion years ✔

Option A: Wind

Option B: Fire

Option C: Water

Option D: Atmosphere

Correct Answer: Wind ✔

Option A: 32

Option B: 15

Option C: 16

Option D: 3

Correct Answer: 16 ✔

Option A: Pakistan

Option B: Canada

Option C: Alaska

Option D: Both b & c

Correct Answer: Both b & c ✔

Option A: >4%

Option B: 5%

Option C: <20%

Option D: >10%

Correct Answer: <20% ✔

Option A: NH2CONH2

Option B: [CO(NH2)]

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: 39.0

Option B: 40.0

Option C: 41.0

Option D: 38.0

Correct Answer: 39.0 ✔

Option A: Ca(free cation

Option B: CaO

Option C: Ca

Option D: None of the above

Correct Answer: Ca(free cation ✔

Option A: 56.58

Option B: 43.28

Option C: 50.58

Option D: 58.58

Correct Answer: 58.58 ✔

Option A: NO3

Option B: NH4

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

A. EC is 8.5
C. SAR is >13
D. All the above

Correct Answer: SAR is >13 ✔

Option A: SOP

Option B: MOP

Option C: Chilean salt peter

Option D: All the above

Correct Answer: All the above ✔

Option A: 7.5

Option B: 12

Option C: 7

Option D: 14

Correct Answer: 7.5 ✔

Option A: Chelate

Option B: Solution complex

Option C: Complex ion

Option D: All the above

Correct Answer: Chelate ✔

Option A: Ziebig

Option B: Darcy

Option C: Kohler

Option D: Niel

Correct Answer: Darcy ✔

Option A: Micro pores

Option B: Macro pores

Option C: Meso pores

Option D: None of the above

Correct Answer: Macro pores ✔

Option A: Ionic bonding

Option B: pH change

Option C: Covalent bonding

Option D: Isomorphic substitution

Correct Answer: Isomorphic substitution ✔

Option A: Mgº

Option B: Kº

Option C: NH2

Option D: Both b & c

Correct Answer: Kº ✔

Option A: Covalent bond

Option B: Vander walls forces

Option C: Wire bond

Option D: None of the above

Correct Answer: Vander walls forces ✔

Option A: Jinney

Option B: Ziking

Option C: Newton

Option D: Simonson

Correct Answer: Simonson ✔

Option A: Zinc

Option B: Nitrogen

Option C: Organic

Option D: Phosphorus

Correct Answer: Phosphorus ✔

Option A: Ziebig

Option B: Newton

Option C: Neil

Option D: Jenny

Correct Answer: Jenny ✔

Option A: Destructive process

Option B: Constructive process

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: White

Option B: Green

Option C: Brown

Option D: Black

Correct Answer: Black ✔

Option A: Granulation

Option B: Texture

Option C: Flocculation

Option D: Structure

Correct Answer: Flocculation ✔

Option A: Fine textured

Option B: Coarse textured

Option C: Sandy

Option D: None of the above

Correct Answer: Fine textured ✔

Option A: Sandy

Option B: Stony

Option C: Clayey

Option D: Sitry

Correct Answer: Clayey ✔

Option A: Hydration

Option B: Oxidation

Option C: Reduction

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Sand and clay

Option B: Clay and iron oxide

Option C: Clay and Mg oxides

Option D: Sand and iron oxide

Correct Answer: Clay and iron oxide ✔

Option A: Volcanic ash

Option B: Volcanic block

Option C: Dike

Option D: Sill

Correct Answer: Volcanic block ✔

Option A: Pacific ocean

Option B: Mid-Atlantic ridge

Option C: Mediterranean sea

Option D: All the above

Correct Answer: All the above ✔

Option A: Laccoliths

Option B: Pegmatic

Option C: Dike

Option D: Batholiths

Correct Answer: Laccoliths ✔