WAEC - Agricultural Science (2021)

  • 1
    The branch of crop science which deals with the study of insect pests is 
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    (C)
    entomology
  • 2
    Horse racing and polo are events where horses are used for
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    (B)
    recreation
  • 3
    The construction of rural feeder roads solves the following access problems in agriculture except
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    (D)
    land tenure system
  • 4

    The diagram above illustrates a farm tool. Use it to answer this question.
     

    The illustrated farm tool is used for

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    (A)
    making mounds
  • 5

    The diagram above illustrates a farm tool. Use it to answer this question.

    The farm implement that could perform a similar function as the illustrated tool is

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    (C)
    ridger
  • 6
    A tractor-mounted sprayer used on large scale farms is the
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    (B)
    motorised sprayer
  • 7
    Which of the following types of farm power does not cause pollution?
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    (A)
    hydro
  • 8
    In planning a farmstead, the structure which should be located on high elevation is the 
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    (C)
    farmhouse
  • 9

    The diagram below illustrates processes in the water cycle. Use it to answer this question.

    The process labelled I is.

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    (D)
    transpiration
  • 10

    The diagram below illustrates processes in the water cycle. Use it to answer this question.

    The process labelled II is

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    (C)
    evaporation
  • 11

    The major source of water to the plants in the diagram is 

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    (C)
    capillary water
  • 12
    The new rock formed when limestone is subjected to great heat and pressure is
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    (D)
    gneiss
  • 13
    Which of the following pairs of raw materials is used in the canning industry
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    (A)
    meat and fish
  • 14
    Microorganisms that decompose organic matter will function best under 
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    (D)
    optimum soil PH
  • 15

    In an experiment determine the percentage of organic matter in a soil sample, the following data was collected; weight of over-dried soil before burning = 50g
    weight of over-dried soil after burning = 28g. Use the information to answer this question.

    Calculate the weight of organic matter in the soil

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    (B)
    22g
  • 16

    In an experiment determine the percentage of organic matter in a soil sample, the following data was collected; weight of over-dried soil before burning = 50g
    weight of over-dried soil after burning = 28g. Use the information to answer this question.

    Determine the percentage of organic matter in the soil 

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    (B)
    44%
  • 17
    Which of the following practices will improve clay soil?
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    (D)
    addition of organic material
  • 18
    A farmer practices crop rotation in order to
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    (D)
    improve soil fertility
  • 19
    The phosphorus cycle is described as being sedimentary because phosphorus 
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    (A)
    is a macroelement
  • 20
    The following factors are essential for maize production except 
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    (A)
    high temperature
  • 21
    Drying of newly harvested grains before storage helps to increase the 
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    (C)
    seed viability
  • 22
    Yam stored in a barn should be inspected at least once a week in order to
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    (D)
    remove sprouts and rotten tubers
  • 23
    The botanical name of onion is
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    (D)
    Allium cepa
  • 24
    Okro seeds are sown on 0.72 hectares of farmland at a spacing of 60cm. Calculate the expected plant population 
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    (D)
    20,000 plants
  • 25
    A plot of land devoted to the cultivation of fruit  trees is called
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    (A)
    orchard
  • 26
    Two species of kola grown for commercial purposes in West Africa are
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    (B)
    Cola nitida and cola verticillata
  • 27
    Propagation of ginger is generally done using it's
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    (B)
    rhizome
  • 28
    Elaeis guineensis and Arachis hypogaea are examples of
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    (B)
    oil crops
  • 29

    The diagram below illustrates a farm operation. Study it and answer this question.

    Which of the following statements is not a reason for carrying out the illustrated farm operation? To

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    (D)
    prevent lodging of the plants
  • 30

    The diagram below illustrates a farm operation. Study it and answer this question.

    Crops which require the illustrated farm operation are

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    (D)
    tomato and yam
  • 31
    The basic importance of agriculture to a forester is to 
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    (D)
    procure timber
  • 32
    A suitable grass for lawns is 
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    (D)
    Panicum maximum
  • 33
    The causative organism of maize rust is a 
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    (D)
    fungus
  • 34
    Which of the following groups of insect pests damages crops by bitting and chewing?
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    (C)
    armyworm, termite nd grasshopper
  • 35
    The breeds of cattle resistant to trypanosomiasis are
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    (A)
    N'dama and moturu
  • 36
    Which of the following features is not a characteristic of a good layer
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    (A)
    Bright red comb and wattle
  • 37
    The best way for a young animal to obtain colostrum is by
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    (D)
    allowing it to suckle the dam
  • 38
    Which of the following statement about slatted floors in livestock housing are true? They
    I.lessen labour requirements
    II.reduce odour in pens
    III.hamper movement of animals
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    (C)
    II and III only
  • 39
    If 0.7kg of feed was fed to chicks per week, determine the cost of feeding the birds for 6 weeks. (1kg of feed costs #5)
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    (C)
    #21.00
  • 40
    Feeds that have more than 18% fibre are classified as 
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    (D)
    roughages
  • 41
    An advantage of zero-grazing is that it
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    (C)
    prevents depletion of pasture
  • 42

    The diagram above illustrates a tool used in animal production. use it to answer this question.

    The illustrated tool is

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    (D)
    an artificial vagina
  • 43
    Formation of blisters on the mouth and the skin around the hoof of farm animals is a symptom of 
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    (D)
    foot and mouth disease
  • 44
    In sheep production, tapeworm could be controlled by 
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    (C)
    dipping
  • 45

    The table below illustrates the supply schedule of maize. Use it to answer this question.

        PRICE(#)   QUANTITY SUPPLIED(kg)
      24  480
      16  400

    The percentage change in quantity supplied for maize is

     

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    (A)
    16.7%