WAEC (WASSCE) 2017

2017 WAEC (WASSCE) Agricultural Science Past Questions

The 2017 WAEC (WASSCE) Agricultural Science past questions with answers: 50 objective questions from the 2017 paper in the DeeepSolve question bank, each with its answer behind "Show answer". Try each question before you check, then practise the paper as a timed WAEC-style CBT.

Past questions © the examination body (JAMB/WAEC/NECO). DeeepSolve is not affiliated with them. Rights holders: see /copyright.

Questions

  1. 1.

    Which of the following practices is not a way of maintaining ornamental plants?

    1. A.Pruning
    2. B.Weeding
    3. C.Watering
    4. D.Harvesting
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    Answer: D. Harvesting

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  2. 2.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  3. 3.

    Flood irrigation is used for the cultivation of

    1. A.water melon
    2. B.swamp rice
    3. C.oil palm
    4. D.coconut
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    Answer: B. swamp rice

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  4. 4.

    The parasite illustrated above obtains nutrients from the host through

    1. A.osmosis
    2. B.diffusion
    3. C.capillarity
    4. D.egestion
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    Answer: A. osmosis

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  5. 5.

    Land use for agriculture in West Africa is influenced by the following factors except

    1. A.topography
    2. B.population density
    3. C.fallowing
    4. D.climatic conditions
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    Answer: C. fallowing

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  6. 6.

    A farming in which different types of crops are grown in quick succession, in a definite order on the same piece of land is termed

    1. A.mixed farming
    2. B.land rotation
    3. C.continuous cropping
    4. D.crop rotation
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    Answer: D. crop rotation

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  7. 7.

    The practice of mating closely related animals is called

    1. A.cross breeding
    2. B.hybridization
    3. C.in-breeding
    4. D.out-breeding
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    Answer: C. in-breeding

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  8. 8.

    The presence of excess water in the colloids of soil particles is known as

    1. A.drainage
    2. B.waterlogging
    3. C.irrigation
    4. D.leaching
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    Answer: B. waterlogging

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  9. 9.

    Which of the following agents is not involved in agricultural marketing?

    1. A.commodity boards
    2. B.money lenders
    3. C.retailers
    4. D.middlemen
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    Answer: B. money lenders

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  10. 10.

    If rows of crops are spaced 1.0m apart with one seed sown per stand, determine the spacing between stands to obtain a plant population of 40,000 plants per hectare.

    1. A.0.25m
    2. B.0.45m
    3. C.0.50m
    4. D.1.00m
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    Answer: A. 0.25m

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  11. 11.

    In the poultry equipments above, which quality of eggs is associated with the equipment labelled I?

    1. A.Size
    2. B.Fertility
    3. C.Colour
    4. D.Price
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    Answer: B. Fertility

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  12. 12.

    Demand and Supply schedules for Mangoes Price of fruit (Le) Supply (No of baskets) Demand (No of baskets) 1,000.00 10 60 2,000.00 20 50 3,000.00 30 40 4,000.00 40 30 5,000.00 50 20 6,000.00 60 10 At Le 1,000.00, what will be the excess demand over supply of mangoes?

    1. A.50 baskets
    2. B.40 baskets
    3. C.20 baskets
    4. D.10 baskets
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    Answer: A. 50 baskets

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  13. 13.

    Which of the following statements is not correct about soil texture?

    1. A.Soils with fine particles have higher water holding capacity than coarse soils
    2. B.Fine-textured soils are warm soils and coarse-textured soils are cool soils
    3. C.The effect of leaching in coarse-textured soils is greater than that in fine-textured soils
    4. D.Fine-textured soils have higher nutrient holding capacity than coarse-textured soils.
    Show answer

    Answer: B. Fine-textured soils are warm soils and coarse-textured soils are cool soils

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  14. 14.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  15. 15.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  16. 16.

    A farmer collects 800 eggs from a laying stock of 1,200 birds per day. Determine the laying percentage of the birds

    1. A.150%
    2. B.67%
    3. C.50%
    4. D.33%
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    Answer: B. 67%

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  17. 17.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  18. 18.

    A farmland measures 50m x 50m. Determine its area in hectares.

    1. A.25ha
    2. B.2.5ha
    3. C.0.25ha
    4. D.0.025ha
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    Answer: C. 0.25ha

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  19. 19.

    A raw material that could be obtained from the forest is

    1. A.margarine
    2. B.honey
    3. C.mutton
    4. D.butter
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    Answer: B. honey

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  20. 20.

    Predators are used by farmers to

    1. A.control pests
    2. B.induce flowering in plants
    3. C.protect the soil
    4. D.hasten fruit ripening
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    Answer: A. control pests

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  21. 21.

    A breeding method which involves the production of heterozygous populations from homozygous lines is

    1. A.inbreeding
    2. B.introduction
    3. C.selection
    4. D.hybridization
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    Answer: D. hybridization

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  22. 22.

    Heat treatment of oil palm seeds before sowing helps to

    1. A.mobilize nutrients for the embryo
    2. B.harden the mesocarp
    3. C.break embryo dormancy
    4. D.improve disease resistance
    Show answer

    Answer: C. break embryo dormancy

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  23. 23.

    Subsidies are given to farmers in the form of

    1. A.reduced prices of inputs
    2. B.provision of social infrastructure
    3. C.high tariff on imported inputs
    4. D.short term loans
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    Answer: A. reduced prices of inputs

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  24. 24.

    Which of the following equipment from the poultry equipments illustrated above could be used in the place of the equipment labelled II in the management of chicks?

    1. A.Incubator
    2. B.Feeder
    3. C.Electric bulb
    4. D.Egg candler
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    Answer: C. Electric bulb

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  25. 25.

    Which of the above illustrated poultry equipment is not used in a brooder house?

    1. A.I
    2. B.II
    3. C.III
    4. D.IV
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    Answer: C. III

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  26. 26.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  27. 27.

    A social factor which affects land availability and use is

    1. A.temperature
    2. B.soil pH
    3. C.light intensity and duration
    4. D.culture of the people
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    Answer: D. culture of the people

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  28. 28.

    Agricultural extension teaching methods are classified on the basis of

    1. A.teaching materials
    2. B.topics to be taught
    3. C.attitude
    4. D.audience size
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    Answer: D. audience size

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  29. 29.

    Which of the following statements is not a problem associated with land tenure system through inheritance?

    1. A.Family members have small land holdings
    2. B.Family members have right to free use of land
    3. C.Non-family members cannot inherit land
    4. D.Farm mechanization is restricted
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    Answer: B. Family members have right to free use of land

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  30. 30.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  31. 31.

    Inhibition of root and fruit formation are deficiency symptoms of

    1. A.iron
    2. B.nitrogen
    3. C.chlorine
    4. D.phosphorus
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    Answer: D. phosphorus

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  32. 32.

    Which of the following practices is an example of a cultural weed control method?

    1. A.Use of insects
    2. B.Mowing
    3. C.Application of herbicides
    4. D.Mulching
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    Answer: D. Mulching

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  33. 33.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  34. 34.

    Imported plants are expected to be

    1. A.vaccinated
    2. B.improved upon
    3. C.treated
    4. D.quarantined
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    Answer: D. quarantined

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  35. 35.

    Which of the following insect-pests does not attack cotton?

    1. A.Aphid
    2. B.Cotton stainer
    3. C.Weevil
    4. D.Pink bollworm
    Show answer

    Answer: C. Weevil

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  36. 36.

    Insect-pests of crops could be controlled by

    1. A.cover-cropping
    2. B.mulching
    3. C.crop rotation
    4. D.organic manuring
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    Answer: C. crop rotation

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  37. 37.

    The parts labelled I, II and III of the farm animal parasite above form the

    1. A.proglottide
    2. B.rostellum
    3. C.sucker
    4. D.scolex
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    Answer: C. sucker

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  38. 38.

    The demand for agricultural produce is generally

    1. A.infinite
    2. B.inelastic
    3. C.unitary
    4. D.static
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    Answer: B. inelastic

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  39. 39.

    Which of the following methods of plant propagation is limited to plants which root easily?

    1. A.Grafting and cutting
    2. B.Layering and cutting
    3. C.Budding and layering
    4. D.Grafting and layering
    Show answer

    Answer: B. Layering and cutting

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  40. 40.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  41. 41.

    The branch of agriculture which deals with the production of fruits is called

    1. A.pomology
    2. B.floriculture
    3. C.olericulture
    4. D.nematology
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    Answer: A. pomology

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  42. 42.

    In fish farming, clarias is introduced to a pond stocked with Tilapia in order to

    1. A.regulate the population for Tilapia
    2. B.compete with Tilapia for feed
    3. C.check pests in the pond water
    4. D.regulate the turbidity of the pond water
    Show answer

    Answer: A. regulate the population for Tilapia

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  43. 43.

    One advantage of cooperative farming is that it

    1. A.allows farmers to have small and scattered plots
    2. B.enables individual farmers to acquire loans from the banks
    3. C.enables farmers to acquire loans from the bank
    4. D.facilitates the use of local tools
    Show answer

    Answer: C. enables farmers to acquire loans from the bank

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  44. 44.

    The following are climatic conditions affecting agricultural production except

    1. A.rainfall
    2. B.relative humidity
    3. C.temperature
    4. D.topography
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    Answer: D. topography

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  45. 45.

    In the carbon cycle, carbon dioxide is used by crops for

    1. A.photosynthesis
    2. B.transpiration
    3. C.decomposition
    4. D.respiration
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    Answer: A. photosynthesis

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  46. 46.

    Which of the following agents is not associated with chemical weathering?

    1. A.oxidation
    2. B.pressure
    3. C.hydrolysis
    4. D.carbonation
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    Answer: B. pressure

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  47. 47.This question needs a diagram, table or passage that we don't have yet, so it isn't shown.

  48. 48.

    By-products of livestock used as feed ingredients in poultry ration include

    1. A.hides and hoofs
    2. B.blood and bones
    3. C.feathers and fur
    4. D.skin and bones
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    Answer: B. blood and bones

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  49. 49.

    The correct sequence of pre-planting operations in

    1. A.clearing→stumping→ploughing→harrowingclearing \to stumping \to ploughing \to harrowing
    2. B.stumping→ploughing→harrowing→clearingstumping \to ploughing \to harrowing \to clearing
    3. C.bulldozing→harrowing→stumping→ploughingbulldozing \to harrowing \to stumping \to ploughing
    4. D.clearing→bulldozing→stumping→harrowingclearing \to bulldozing \to stumping \to harrowing
    Show answer

    Answer: A. clearing→stumping→ploughing→harrowingclearing \to stumping \to ploughing \to harrowing

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  50. 50.

    Which of the following pairs of diseases attack coffee?

    1. A.Mosaic and smut
    2. B.Smut and ridge
    3. C.Rust and mosaic
    4. D.Rust and leaf spot
    Show answer

    Answer: D. Rust and leaf spot

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