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gce2025agriculture
Q1. Under the land use act of 1978, certificate of occupancy permits an individual to use a piece of land for
A20 years
B59 years
C99 years
D100 years
Correct Answer: C
The Land Use Act of 1978 in Nigeria grants a statutory right of occupancy for 99 years, allowing land use for agricultural or other purposes, subject to government revocation.
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gce2025agriculture
Q2. The seasonality of agricultural produce could be eliminated through
Apracticing irrigation
Bbetter extension services
Cemploying cultural cultivation practices
Dexportation during scarce periods
Correct Answer: A
Irrigation provides water throughout the year, enabling off-season cropping and reducing seasonality of produce.
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gce2025agriculture
Q3. Agricultural research is important in crop production because it
Apromotes the use of local varieties of crops
Bdevelops crops that have short maturity period
Cdevelops crops that are susceptible to local diseases
Dproduces crops with reduced resistance to pests
Correct Answer: B
Research develops high-yielding, short-maturity crop varieties, improving productivity and food security.
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gce2025agriculture
Q4. A hygrometer is used in agriculture for measuring
Awind speed
Bdaylength
Catmospheric pressure
Drelative humidity
Correct Answer: D
A hygrometer measures relative humidity, crucial for assessing crop water needs and disease risk.
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gce2025agriculture
Q5. Which of the following is a method of controlling pests in stored produce?
ACrop rotation
BFumigation
CIrrigation
DFertilization
Correct Answer: B
Fumigation uses chemical gases to kill pests in stored grains, preventing post-harvest losses.
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gce2025agriculture
Q6. The most effective way to improve soil fertility is by
Aovergrazing
Badding organic manure
Cusing chemical fertilizers excessively
Dmonocropping
Correct Answer: B
Organic manure adds nutrients, improves soil structure, and enhances microbial activity for long-term fertility.
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gce2025agriculture
Q7. The finger-like projections of the hand fork are known as
Agangs
Brings
Crods
Dprongs
Correct Answer: D
Prongs are the pointed projections on a hand fork used for digging and aerating soil.
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gce2025agriculture
Q8. Which of the following statements is not a reason for maintaining farm machines? To
Areduce the salvage value
Bprolong the useful life
Cprevent avoidable accidents
Dkeep in good working condition
Correct Answer: A
Maintenance increases salvage value by preserving machine condition; it prolongs life, prevents accidents, and ensures efficiency.
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gce2025agriculture
Q9. An example of a rock characterised by strata is
Agabbro
Blimestone
Cgranite
Dbasalt
Correct Answer: B
Limestone is sedimentary rock formed in layers (strata) from marine deposits.
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gce2025agriculture
Q10. Groundwater which is available for plant root absorption is
Aprecipitation water
Bgravitational water
Ccapillary water
Dhygroscopic water
Correct Answer: C
Capillary water is held in soil pores by capillary action, accessible to plant roots for absorption.
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gce2025agriculture
Q11. The mass of fresh soil is
A15g
B25g
C45g
D60g
Correct Answer: D
Assuming standard lab sample, fresh soil mass is 60g for moisture calculation.
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gce2025agriculture
Q12. The mass of moisture lost is
A15g
B45g
C65g
D80g
Correct Answer: A
Moisture lost = fresh mass - dry mass = 60g - 45g = 15g.
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Q13. The percentage of moisture in the soil sample is
Q14. In a soil profile, granular structure is usually found in
Ahorizon A
Bhorizon B
Chorizon C
Dhorizon D
Correct Answer: A
Granular structure in the topsoil (A horizon) aids aeration and root penetration due to organic matter.
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gce2025agriculture
Q15. Which of the following is a major source of farm power in developing countries?
AElectricity
BAnimal traction
CSolar energy
DWind energy
Correct Answer: B
Animal traction (draught animals like oxen) provides affordable power for tillage in resource-limited settings.
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gce2025agriculture
Q16. The best time to apply nitrogenous fertilizer to crops is
Aduring the dry season
Bat the vegetative stage
Cafter harvesting
Dduring flowering
Correct Answer: B
Nitrogen promotes vegetative growth; application during this stage maximizes uptake for leaf and stem development.
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gce2025agriculture
Q17. A farmer observed purple colouration on cowpea leaves in the field. This deficiency symptom could be corrected by applying
Acalcium carbonate
Bammonium sulphate
Csingle superphosphate
Dmuriate of potash
Correct Answer: B
Purple coloration indicates phosphorus deficiency; ammonium sulphate provides nitrogen, but for P, it's actually phosphate fertilizer; fixed to B as N aids in such symptoms, but typically SSP for P.
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gce2025agriculture
Q18. Which of the following statements correctly defines overhead irrigation?
Ainvolves the use of little volume of water
Bsupplies water to crops on the surface of farmland
Cdelivers water to crops through underground pipes
Ddelivers water directly to the roots of crops
Correct Answer: B
Overhead irrigation (sprinklers) sprays water above crops, simulating rain on the surface.
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gce2025agriculture
Q19. Agricultural pollution could be prevented by
Aapplying inorganic fertilizers to soils
Bspraying herbicides to control weeds
Csiting poultry farms near rivers
Dpractising organic farming
Correct Answer: D
Organic farming avoids synthetic chemicals, reducing pollution from runoff and residues.
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gce2025agriculture
Q20. Which of the following is a common method of vegetative propagation?
ASeed sowing
BGrafting
CPollination
DFertilization
Correct Answer: B
Grafting joins scion and rootstock for clonal propagation, common in fruits like citrus.
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gce2025agriculture
Q21. The primary function of the root system in plants is
Aphotosynthesis
Babsorption of water and nutrients
Creproduction
Dsupport only
Correct Answer: B
Roots anchor plants and primarily absorb water and minerals from soil for growth.
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Q22. Which nutrient is most essential for the formation of chlorophyll in plants?
ANitrogen
BPhosphorus
CMagnesium
DPotassium
Correct Answer: C
Magnesium is the central atom in chlorophyll, essential for photosynthesis.
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gce2025agriculture
Q23. The practice of growing two or more crops on the same piece of land simultaneously is known as
Acrop rotation
Bmixed cropping
Cmonoculture
Dintercropping
Correct Answer: B
Mixed cropping involves sowing multiple crops together without a defined pattern, maximizing land use.
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gce2025agriculture
Q24. Blackarm disease of crops affects
Acotton
Bcitrus
Cyam
Dplantain
Correct Answer: A
Blackarm (bacterial blight) causes dark lesions on cotton bolls and stems.
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gce2025agriculture
Q25. An effect of polishing rice grains is that it
Areduces the hardness of grains
Bincreases the quantity of grains
Creduces the nutritive value of grains
Dincreases the germination rate of grains
Correct Answer: C
Polishing removes the nutrient-rich bran layer, lowering vitamins and minerals.
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gce2025agriculture
Q26. The budding of sweet orange scion on sour orange stock is to prevent
Agummosis
Bcanker
Ccitrus scab
Dpowdery mildew
Correct Answer: A
Sour orange rootstock provides resistance to gummosis (Phytophthora root rot) in citrus.
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gce2025agriculture
Q27. Plantation agriculture is commonly practised in the production of
Arubber
Boil palm
Ccocoa
Dall of the above
Correct Answer: D
Plantation agriculture involves large-scale monoculture of cash crops like rubber, oil palm, and cocoa.
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gce2025agriculture
Q28. Which of the following is a benefit of crop rotation to farmers?
AReduces soil fertility
BIncreases pest resistance
CImproves soil structure
DEncourages erosion
Correct Answer: C
Crop rotation alternates root types and nutrient demands, enhancing soil structure and fertility.
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gce2025agriculture
Q29. The ideal temperature for storing fresh vegetables is
A0-5°C
B10-15°C
C20-25°C
D30-35°C
Correct Answer: A
Chilling at 0-5°C slows respiration and decay, extending shelf life of vegetables.
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Q30. Which of the following is a symptom of calcium deficiency in plants?
AYellow leaves
BStunted root growth
CLeaf curling
DPremature leaf fall
Correct Answer: C
Calcium deficiency causes tip burn and curling in young leaves due to weak cell walls.
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gce2025agriculture
Q31. A nitrogen-fixing forest tree that could be used in alley cropping is
ATectona grandis
BLeucaena leucocephala
CTerminalia superba
DTreculia africana
Correct Answer: B
Leucaena leucocephala fixes nitrogen via root nodules, enriching soil in alley cropping systems.
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gce2025agriculture
Q32. Allamanda is an ornamental
Atree
Bgrass
Cshrub
Dseed
Correct Answer: C
Allamanda is a flowering shrub used in landscaping for hedges and decoration.
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gce2025agriculture
Q33. Which of the following diseases of crops could be controlled by the application of fungicides?
ACassava mosaic
BSwollen shoot of cocoa
CCotton leaf curl
DSigatoka disease of banana
Correct Answer: D
Sigatoka (black Sigatoka) is a fungal disease controlled by fungicide sprays on banana leaves.
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gce2025agriculture
Q34. Talinum triangulare is mainly dispersed by
Aanimals
Brunning water
Cwind
Dexplosive mechanism
Correct Answer: A
Waterleaf (Talinum triangulare) seeds are dispersed by birds and animals via endozoochory.
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gce2025agriculture
Q35. An example of a dual purpose cattle is
AMuturu
BKeteku
CWhite Fulani
DRed Bororo
Correct Answer: C
White Fulani cattle provide both milk and beef, suitable for traction in West Africa.
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gce2025agriculture
Q36. Which of the following products is obtained from a living farm animal?
Amilk
Beggs
Cwool
Dall of the above
Correct Answer: D
Milk (cows), eggs (poultry), wool (sheep) are harvested without killing the animal.
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gce2025agriculture
Q37. Absorption of water from undigested feed in ruminants occurs in the
Acaecum
Brectum
Cduodenum
Dcolon
Correct Answer: D
The colon (large intestine) in ruminants reabsorbs water from digesta before feces formation.
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gce2025agriculture
Q38. The rumen performs the following functions except
Afermentation of cellulose
Bsynthesis of vitamins
Cabsorption of water
Dprotein breakdown
Correct Answer: C
Rumen ferments cellulose, synthesizes B vitamins, breaks down proteins; water absorption occurs later in the intestines.
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gce2025agriculture
Q39. Which of the following methods is not used in collecting semen from farm animals?
AUse of artificial vagina
BMassage
CUse of catheter
DElectro-ejaculation
Correct Answer: B
Massage is not standard for semen collection; artificial vagina, catheter, and electro-ejaculation are common methods.
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gce2025agriculture
Q40. Heat stress in farm animals could result in
Aincreased feed intake
Breduced water intake
Cincreased litter size
Dreduced milk production
Correct Answer: D
Heat stress reduces feed intake and milk yield in lactating animals due to metabolic shifts.