Soil Science MCQs

Option A: Hot-dry

Option B: Cold-dry

Option C: Cold-moist

Option D: Hot-wet

Correct Answer: Hot-wet ✔

Option A: Lithosphere

Option B: Biosphere

Option C: Pedosphere

Option D: Both A & C

Correct Answer: Biosphere ✔

Option A: 0.75%

Option B: 2.75%

Option C: 0.3%

Option D: None of the above

Correct Answer: 0.3% ✔

Option A: Infiltration

Option B: Permeability

Option C: Percolation

Option D: Drainage

Correct Answer: Percolation ✔

Option A: Field Capacity (FC)

Option B: Maximum water holding capacity

Option C: Hygroscopic coefficient

Option D: Permanent wilting point

Correct Answer: Hygroscopic coefficient ✔

Option A: Hydrophytes

Option B: Hygrophytes

Option C: Both a & b

Option D: None of these

Correct Answer: Hygrophytes ✔

Option A: Sugar, celluloses, hemicelluloses

Option B: Proteins, lignins

Option C: Waxes, lipids

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Leaching

Option B: Capillary water

Option C: Infiltration

Option D: All of them

Correct Answer: Infiltration ✔

Option A: India

Option B: The Netherlands

Option C: China

Option D: France

Correct Answer: The Netherlands ✔

Option A: Increase in Soil pH

Option B: Decrease in soil pH 

Option C: Remains same

Option D: None of the them

Correct Answer: Decrease in soil pH  ✔

Option A: 2.6 Mg/m³

Option B: 1.6 Mg/m³

Option C: 1.3Mg/m³

Option D: None of them

Correct Answer: 2.6 Mg/m³ ✔

Option A: Apatite

Option B: Calcite

Option C: Dolomite

Option D: Gypsum

Correct Answer: Apatite ✔

Option A: Rain Guage — For measuring rains

Option B: Wind Van — For finding out

Option C: Sunshine — Bright sun-shine

Option D: Evaporimeter — Wind speed

Correct Answer: Evaporimeter — Wind speed ✔

Option A: Biodiversity

Option B: Environment

Option C: Ecotone

Option D: Both A & C

Correct Answer: Environment ✔

Option A: brought under range crops

Option B: Forests

Option C: Both a & b

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Death of terminal buds; roots tips also affected

Option B: Abnormal dark green appearance of foliage

Option C: Premature shedding of  blossoms & buds & weakened stem

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Nitrates, Phosphates

Option B: Calcium, magnesium

Option C: Amino acids

Option D: All of the above

Correct Answer: All of the above ✔

Option A: 47,920 tonnes/day

Option B: 65, 772 tonnes/day

Option C: 12250 tonnes/day

Option D: All of the above

Correct Answer: 47,920 tonnes/day ✔

Option A: Erosion

Option B: Salinity

Option C: Waterlogging

Option D: All of the above

Correct Answer: All of the above ✔

Option A: English word

Option B: French word

Option C: Latin word

Option D: None of the above

Correct Answer: Latin word ✔

Option A: Halophyte

Option B: Hetrophyics

Option C: Viticphyics

Option D: Hortiphyics

Correct Answer: Halophyte ✔

Option A: Chasmophytes

Option B: Lithophytes

Option C: Psammophytes

Option D: None of these

Correct Answer: Psammophytes ✔

Option A: Ca only

Option B: B only

Option C: P only

Option D: Both Ca & B

Correct Answer: D. Both Ca & B ✔

Option A: Sandy Soil

Option B: Clay soil 

Option C: Gravely soil

Option D: Both A & C

Correct Answer: Clay soil  ✔

Option A: Sedimentary rock

Option B: Metamorphic rock

Option C: Stratified rock

Option D: Both A & C

Correct Answer: Both A & C ✔

Option A: Regolith

Option B: Poly-pedon

Option C: Series

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Neutral

Option B: Alkaline

Option C: Acidic

Option D: None of these

Correct Answer: Neutral ✔

Option A: Diffusion

Option B: Interception

Option C: Mass flow

Option D: None of the above

Correct Answer: Mass flow ✔

Option A: All the macro & micropores in the soil are filled with water

Option B: All the macropores filled with water & the micropores filled with air

Option C: All the macropores filled with air & the micropores filled with water 

Option D: All of the above wrong

Correct Answer: All the macropores filled with air & the micropores filled with water  ✔

Option A: Potassium

Option B: Zinc

Option C: Phosphorus

Option D: Mg

Correct Answer: Potassium ✔

Option A: Rill-Sheet-Gully

Option B: Gully-Sheet-Rill

Option C: Sheet-Rill-Gully

Option D: None of these

Correct Answer: Sheet-Rill-Gully ✔

Option A: Soil Silt

Option B: Soil colloids

Option C: Soil loam

Option D: Soil sand

Correct Answer: Soil colloids ✔

Option A: Black soils

Option B: River soils

Option C: Marine deposits

Option D: Both B & c

Correct Answer: Black soils ✔

Option A: Prismatic & Columnar

Option B: Spheroidal or Sphere-like

Option C: Angular blocky Sub-angular blocky

Option D: Platy & Luminar

Correct Answer: Spheroidal or Sphere-like ✔

A. Pedology
B.  Soil Science
C. Agronomy
D. None of these

Submitted by: Shafiq Rehman

Correct Answer: B.  Soil Science ✔

Option A: Cutting trees

Option B: Excessive grazing

Option C: By plantation

Option D: By heavy irrigation

Correct Answer: By plantation ✔

Option A: Saltation

Option B: Rainsplash erosion

Option C: Sheet erosion

Option D: Rill erosion

Correct Answer: Saltation ✔

Option A: E

Option B: O

Option C: B

Option D: A

Correct Answer: B ✔

Option A: Stone

Option B: Soil

Option C: Rock

Option D: Silt

Correct Answer: Silt ✔

Option A: Soil Quality

Option B: Soil Pollution

Option C: Soil Salinity

Option D: None of these

Correct Answer: Soil Quality ✔

Option A: Pollution runs-off into rivers & kills the fish, plant & other aquatic life

Option B: Crops & fodder grown on polluted soil may pass the pollutants on to the consumers

Option C: Soil structure is damaged or polluted soil may no longer grow crops & fodder

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Insecticides—Herbicides

Option B: Fungicides—Insecticides

Option C: Weedicides—insecticides

Option D: None of the above

Correct Answer: B. Fungicides—Insecticides ✔

Option A: Arsenic & Cadmium

Option B: Mercury & chromium

Option C: Calcium & Magnesium

Option D: Both A & B

Correct Answer: Both A & B ✔

Option A: Lead

Option B: Fluorine

Option C: Nickle

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Acid rain

Option B: Neutral rain

Option C: Both A & B

Option D: None of the above

Correct Answer: Acid rain ✔

Option A: Sunlight

Option B: Chlorophyll

Option C: Water & plant nutrients

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Potash

Option B: Nitrogen

Option C: Calcium

Option D: Both a & c

Correct Answer: Nitrogen ✔

Option A: The plant absorbs carbon as carbondioxides directly from the atmosphere.

Option B: Water is the source of hydrogen

Option C: Air & water is the source of oxygen & the chief source of soil nitrogen is organic matter & when organic matter decomposes it gives ammonia.

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Barley

Option B: Rice

Option C: Date palm

Option D: None of these

Correct Answer: Rice ✔

Option A: P

Option B: N

Option C: Mg

Option D: None of the above

Correct Answer: P ✔

Option A: Sills

Option B: Dikes

Option C: Lacoliths

Option D: Batholiths

Correct Answer: Sills ✔

Option A: pH decrease, Ec increase

Option B: pH & Ec both increase

Option C: pH increase & Ec decrease

Option D: None of these

Correct Answer: pH increase & Ec decrease ✔

Option A: Symbiotically

Option B: Non-symbiotically

Option C: Can fix A & B

Option D: None of these

Correct Answer: Non-symbiotically ✔

Option A: 1:1 clay mineral

Option B: 1:2 clay mineral

Option C: 2:1 clay mineral

Option D: 2:2 clay mineral

Correct Answer: 2:1 clay mineral ✔

Option A: Mineralization

Option B: Immobilization

Option C: Solubilization

Option D: both A & C

Correct Answer: Immobilization ✔

Option A: Increase in fruit yield

Option B: Improve their protein

Option C: Increase fruit yeid & protein

Option D: None of these

Correct Answer: Increase fruit yeid & protein ✔

Option A: 4

Option B: 2

Option C: 6

Option D: 5

Correct Answer: 2 ✔

Option A: An enzyme

Option B: A vitamin

Option C: A hormone

Option D: A protein

Correct Answer: A hormone ✔

Option A: Onsite damages

Option B: Offsite damages

Option C: Both A & B

Option D: None of the above

Correct Answer: Both A & B ✔

Option A: Permanent gullies

Option B: Ephemeral gullies 

Option C: Both A & B

Option D: None of these

Correct Answer: Ephemeral gullies  ✔

Option A: Engineering

Option B: Agroforestry 

Option C: Cultivating

Option D: All of the above

Correct Answer: Agroforestry  ✔

A. Black C
B. Biochar
C. Both A & B
D. None of the above

Submitted by: Shafiq Rehman

Correct Answer: Both A & B ✔

Option A: Accelerated activities

Option B: Over grazing

Option C: Dry farming agriculture

Option D: None of the above

Correct Answer: Over grazing ✔

Option A: Wind  erosion

Option B: land sliding

Option C: Rainfall

Option D: None of these

Correct Answer: Rainfall ✔

Option A: Volcanic Rock

Option B: Igneous Rock

Option C: Aphantic Rock

Option D: Both A & B

Correct Answer: Aphantic Rock ✔

A. Soil
B. Land
C. Earth
D fragmented rock

Submitted by: gmsyed

Correct Answer: Earth ✔

Option A: Primary orthophosphate

Option B: Secondary orthophosphate

Option C: both

Option D: None of these

Correct Answer: Secondary orthophosphate ✔

Option A: Primary orthophosphate

Option B: Secondary orthophosphate

Option C: Both

Option D: None of these

Correct Answer: Primary orthophosphate ✔

Option A: H2po4

Option B: HPO4-2

Option C: Both

Option D: Non of these

Correct Answer: Both ✔

Option A: High organic matter

Option B: Low organic matter

Option C: Both a & b

Option D: None of these

Correct Answer: High organic matter ✔

Option A: Soil amendment

Option B: Soil conditioner

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: Mull

Option B: Mulch

Option C: Mycorrhizae

Option D: Muck

Correct Answer: Mulch ✔

Option A: N, P, K

Option B: S, Mg, Ca, Fe

Option C: Both a & b

Option D: None of a & b

Correct Answer: Both a & b ✔

Option A: In the absence of an element, its not possible for plant to complete its vegetative cycle.

Option B: The role played by an element is specific & can not be replaced by another element.

Option C: The element is directly involved in the nutrition of the plant.

Option D: All of these

Correct Answer: All of these ✔

Option A: Suitable for grazing

Option B: Suitable for forestry

Option C: Unsuitable for any agricultural use

Option D: Suitable for cultivated farming

Correct Answer: Suitable for cultivated farming ✔

Option A: Foliated metamorphic rocks

Option B: Non-foliated metamorphic rocks

Option C: Both a & b

Option D: None of a & b

Correct Answer: Both a & b ✔

Option A: Sedimentary rocks

Option B: Secondary rocks

Option C: Aqueous rocks

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Primary rocks

Option B: Secondary rocks

Option C: Aqueous rocks

Option D: None of the above

Correct Answer: Primary rocks ✔

Option A: Nitrogen

Option B: Oxygen

Option C: Carbon dioxide

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Solids

Option B: Liquids

Option C: Gases

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Carbonation

Option B: Acidification

Option C: Hydration

Option D: Dissolution

Correct Answer: Hydration ✔

Option A: Aridisols

Option B: Gelisols

Option C: Endsols

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Young soils with few horizons

Option B: Volcanic soils

Option C: Organic soils

Option D: Dry soils

Correct Answer: Young soils with few horizons ✔

Option A: Entisols

Option B: Inceptisols

Option C: Andisols

Option D: Aridisols

Correct Answer: Entisols ✔

Option A: Erosion & pollution

Option B: Waterlogging & salinization

Option C: Nutrient mining

Option D: All of these

Correct Answer: All of these ✔

Option A: High temperature

Option B: Alkaline

Option C: Both a & b

Option D: None of a & b

Correct Answer: Both a & b ✔

Option A: Soil neutrality

Option B: Soil quality

Option C: Both a & b

Option D: None of these

Correct Answer: Soil quality ✔

Option A: Industrial

Option B: Agricultural

Option C: Household

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Clay

Option B: Sandy loam

Option C: Loamy sand

Option D: Loam

Correct Answer: Loam ✔

Option A: Ec

Option B: pH

Option C: Pascal

Option D: None of the above

Correct Answer: pH ✔

Option A: Brushwood check dams

Option B: Loose stone or wire-bound check dams

Option C: Cement & stone check dams

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Deep Tillage

Option B: Conservation Tillage

Option C: Both a & b

Option D: None of these

Correct Answer: Conservation Tillage ✔

Option A: Abrasion

Option B: Ablation 

Option C: Backplain

Option D: Bank-Caving

Correct Answer: Ablation  ✔

Option A: < 0.002 mm- >2 mm

Option B: 0.5 mm – 1.0 mm

Option C: 0.02 mm- 0.2 mm

Option D: None of the above

Correct Answer: < 0.002 mm- >2 mm ✔

Option A: Alfisols. fine & coarse textured

Option B: Histosols, peat & muck

Option C: Ultisols, Fe & Al rich

Option D: None of the above

Correct Answer: Histosols, peat & muck ✔

Option A: Casuarina equisetifolia

Option B: Albizia lebbeck

Option C: Both A & B

Option D: None of the above

Correct Answer: Casuarina equisetifolia ✔

Option A: Linear planting

Option B: Strip planting

Option C: Cover planting

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Casuarina equiselifolia

Option B: Acacia spp

Option C: Azadirachta indica

Option D: All of the above

Correct Answer: Azadirachta indica ✔

Option A: Saline soil

Option B: Saline-Alkaline

Option C: Alkaline

Option D: None of the above

Correct Answer: Saline-Alkaline ✔

Option A: Soil conservation hedges

Option B: Woody Hedgerows

Option C: Hedgerows intercropping

Option D: All of these

Correct Answer: Hedgerows intercropping ✔