WAEC - Agricultural Science (1999)

  • 1
    The main objective of agriculture is
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    (C)
    food production
  • 2
    Food shortage can be minimized by
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    (A)
    efficient pest control services
  • 3
    Subsistence agriculture is characterized by
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    (C)
    small farm holders
  • 4
    Output is higher in commercial agriculture because of the following reasons except
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    (C)
    employment of large labour force
  • 5
    The most common factor affecting land use is
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    (A)
    population pressure
  • 6
    Financial assistance from government to the farmers is usually in the following forms except
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    (A)
    loans
  • 7
    Which of the following groups of animals is usually kept in game reserves?
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    (D)
    lions,elephants and leopards
  • 8
    The following processes in crops are sensitive to day-length except
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    (D)
    branching
  • 9
    Rain water is made available to crops through
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    (D)
    root absorption
  • 10
    Which of the following rocks is formed from shale?
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    (B)
    slate
  • 11
    The horizon of soil profile which encourages the greatest level of microbial activity is
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    (A)
    A-horizon
  • 12
    The easiest method of determining soil texture in the field is by
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    (C)
    feeling
  • 13
    The type of soil with a particle size of 0.02 to 0.002 mm is
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    (B)
    silt
  • 14
    If urea fertilizer contains 46% nitrogen. calculate the amount of nitrogen in 25 kg bag of fertilizer?
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    (A)
    11.5 kg
  • 15
    Fertile soil is one which
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    (D)
    contains all essential plant nutrients in suitable proportions
  • 16
    The effects of practicing crop rotation include the following except
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    (D)
    adding humus to the soil
  • 17
    The method of irrigation suitable for use on a steep slope is
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    (D)
    shadoof
  • 18
    The main source of power for subsistence equipment is
    پاسخ دهید
    (D)
    man
  • 19
    The most suitable source of power for stationary equipment on a farm is
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    (B)
    electricity
  • 20
    An important farm machine used for coupling many implements is
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    (C)
    tractor
  • 21
    Which of the following is the correct order for land preparation?
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    (A)
    land clearing-ploughing-harrowing-ridging
  • 22
    Which of the following surveying equipment is used for measuring angles during farm surveying?
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    (A)
    theodolite
  • 23
    Which of the following farm practices is not mechanized?
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    (D)
    transplanting
  • 24
    The main aim of mechanised agriculture is
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    (C)
    having a large land area for cultivation
  • 25
    The following are necessary operation in maize cultivation except
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    (C)
    nursery practices
  • 26
    Gunning is a method of processing
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    (B)
    cotton
  • 27
    Ginger is propagated by
    پاسخ دهید
    (B)
    rhizomes
  • 28
    Which of the following is not correct about stylosanthes gracilis? it
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    (A)
    is an animal legume
  • 29
    Which of the following is not a problem of forest management?
    پاسخ دهید
    (C)
    planting different varieties of timber
  • 30
    The tree species commonly planted for pulpwood is
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    (A)
    gmelina
  • 31
    Root-knot disease in tomatoes is caused by
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    (B)
    nematode
  • 32
    Callosobruchus maculatus is a common pest of
    پاسخ دهید
    (B)
    cowpea
  • 33
    Gummosis disease of citrus is caused by
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    (B)
    fungi
  • 34
    Which of the following weeds is dispersed by wind?
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    (D)
    tridax (tridax procumbens)
  • 35
    The characteristic symptoms of mosaic disease of crops is usually observed on
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    (B)
    leaves
  • 36
    The correct sequence in the processes of crop improvement is
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    (A)
    introduction-slection-breeding
  • 37
    A condition which a gene does manifest observation characteristics in the presence of its dominant allele is known as
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    (C)
    recessiveness
  • 38
    Gestation period is defined as the time
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    (B)
    between conception and parturition
  • 39
    The hormone responsible for milk let down in female farm animals is
    پاسخ دهید
    (C)
    oxytocin
  • 40
    The adult male cattle is called
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    (A)
    bull
  • 41
    An advantage of extensive system of rearing goats is
    پاسخ دهید
    (A)
    low labour requirement
  • 42
    Layers ration contains more limestone than growers ration because limestone
    پاسخ دهید
    (D)
    supplies sufficient minerals to layers for shell formation
  • 43
    If 200 layers will consume 25kg of feed per day, calculate the amount of feed consumed by a layer per day.
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    (A)
    0.25kg/day
  • 44
    Which of the following is not a method of improving rangeland?
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    (A)
    practising continous grazing
  • 45
    Miracidium is one of the stages in the life cycle of
    پاسخ دهید
    (C)
    liver fluke
  • 46
    Which of the following is not a symptom of foot and mouth disease of cattle?
    پاسخ دهید
    (D)
    blood stained diarrhoea
  • 47
    Heavy infestation of liver fluke causes poor absorption of fats in livestock by
    پاسخ دهید
    (D)
    inhibiting the action of the digestive enzymes
  • 48
    Methods of preserving fish include the following except
    پاسخ دهید
    (A)
    boiling
  • 49
    Which of the following fishing gears can be used for total harvesting of ponds?
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    (D)
    dragnet
  • 50
    The practice of mating closely-related animals is called
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    (D)
    in breeding
  • 51
    The natural resource utilized for production is
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    (D)
    land
  • 52
    An increase in supply of agricultural produce can be caused by the following except
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    (D)
    consumers buying less products
  • 53
    Which of the following constitutes subsidy in agricultural enterprise?
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    (A)
    supply of fertilizer to farmers at reduced price
  • 54
    Records of money transactions in a farming business are termed
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    (B)
    farm accounts
  • 55
    Calculate the salvage value of a tractor with a depreciation value of N10,580.00 and initial cost of N50,000.00 after a year of use.
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    (C)
    N39,420.00