WAEC - Agricultural Science (2011)

  • 1
    Agriculture contributes to the economy of West African Countries through the following means except
    Respondre
    (B)
    supply of armaments for territorial defence
  • 2
    Which of the following statements about agricultural development is true? It leads to I. increased processing of produce II. increased food production III. high productivity IV. increased agricultural labour force
    Respondre
    (A)
    I, II and III only
  • 3
    Under the commercial land tenure system, farmers find it difficult to secure loans because
    Respondre
    (C)
    land holdings cannot be used as security
  • 4
    Government plays important role in the development of agriculture through the following means except
    Respondre
    (A)
    provision of subsidies
  • 5
    Which of the following factors does not influence the distribution of cattle in West Africa?
    Respondre
    (B)
    light
  • 6
    Poaching is prohibited in game reserves to
    Respondre
    (B)
    conserve wildlife
  • 7
    Soil water that is available for root absorption at field capacity is
    Respondre
    (A)
    capillary water
  • 8
    Which of the following factors are causes of deforestation in West Africa? I. expansion of cultivated land II. high population growth rate III. conservation of wildlife in game reserves IV. urban growth
    Respondre
    (C)
    I,II and IV only
  • 9
    In which layer of the soil profile do most biological activities occur?
    Respondre
    (D)
    A-horizone
  • 10
    Which of the following statements is correct about micro-nutrients? They
    Respondre
    (B)
    are required by plants in very small quantities
  • 11
    Which of the following properties of soil determines its water-holding capacity? I. Texture II. pH III. Colour IV. Structure
    Respondre
    (B)
    I and IV only
  • 12
    Which of the following statements about soil organisms is false?
    Respondre
    (C)
    soil with good texture and structure cannot harbour soil microbes
  • 13
    A detrimental effect of bush burning is that it
    Respondre
    (A)
    destroys soil organic matter
  • 14
    The following crops will enrich the soil with nitrates except
    Respondre
    (D)
    exoriepus
  • 15
    Which of the following groups of rocks is formed as a result of volcanic eruption?
    Respondre
    (B)
    basalt,granite and pumice
  • 16
    The following fertilizers can be used to neutralize soil acidity except
    Respondre
    (B)
    ammonium nitrate
  • 17
    The following are advantages of sub-surface irrigation except that
    Respondre
    (B)
    it can be used only for specific types of crops
  • 18
    Which of the following statement is a disadvantage of human power? it
    Respondre
    (D)
    has low output
  • 19
    The instrument which enables a surveyor to find the direction of a base line is
    Respondre
    (D)
    magnetic compass
  • 20
    Limitations of farm mechanization in West Africa do not include
    Respondre
    (A)
    land fragmentation
  • 21
    The use of animal traction is limited in the forest zones of West Africa because of the
    Respondre
    (B)
    presence of tsetseflies
  • 22
    The correct sequence for the use of coupled implements for land preparation is
    Respondre
    (A)
    plough,horrow and ridger
  • 23
    Corms,rhizomes and tubers are examples of
    Respondre
    (A)
    underground stems
  • 24
    Tomatoes are staked in order to
    Respondre
    (D)
    prevent rotting of fruits
  • 25
    In crop production, ginger is propagated by
    Respondre
    (C)
    rhizome
  • 26
    A regulatory control of diseases in crop production is
    Respondre
    (B)
    quarantine
  • 27
    Yellow colouration of the lower leave of a growing maize plant may be due to deficiency in
    Respondre
    (D)
    nitrogen
  • 28
    Which of the following insects transmits swollen shoot disease of cocoa?
    Respondre
    (B)
    mealybug
  • 29
    The main objectives of establishing forest in the arid regions is to
    Respondre
    (A)
    check desert enroachment
  • 30
    The forest management system which involves the planting of both food crops and forest trees on the same piece of land at the same time is known as
    Respondre
    (B)
    taungya
  • 31
    Pineapple is widely propagated using
    Respondre
    (B)
    suckers
  • 32
    Which of the following crops has a fibrous root system?
    Respondre
    (D)
    sugarcane
  • 33
    The process of grafting in crop production involves
    Respondre
    (D)
    the joining of two parts from related crops
  • 34
    Crop rotation decreases the incidence of pests by
    Respondre
    (A)
    breaking life cycles of pests
  • 35
    If the recommended spacing for a tree crop is 2.5cm by 4.0m.determine the number of seedlings required to plant a 2 hectare farmland.
    Respondre
    (B)
    2,000
  • 36
    Close to the time of harvesting of cotton, sunshine is needed to ensure the production of boils that are
    Respondre
    (C)
    not mouldy
  • 37
    If T represents the gene for tallness while t represents dwarfness. When a tall (TT) crop is crossed with a dwarf (tt) crop, the resultant crop will be
    Respondre
    (B)
    100% tall
  • 38
    If T represents the gene for tallness while t represents dwarfness. The genotypic ratio of the second filial generation will be
    Respondre
    (B)
    1:2:1
  • 39
    The correct sequence of feed utilization in farm animals is
    Respondre
    (C)
    ingestion-digestion-assimilation
  • 40
    Sexual maturity in farm animal is not influenced by their
    Respondre
    (B)
    sex
  • 41
    A sow that is not producing milk after farrowing should be given
    Respondre
    (A)
    oxytocin
  • 42
    In preparing for parturition of a sow,warmth should be provided to
    Respondre
    (D)
    prevent chilling of the young
  • 43
    The device which would help to stabilize heat in an incubator is the
    Respondre
    (D)
    thermostat
  • 44
    In animal production, newly-born rabbits are called
    Respondre
    (A)
    bunnies
  • 45
    The weight of a sheep increased from 25kg to 45kg in two months. If the total consumption during the period was 60kg,determine the feed conversion ratio.
    Respondre
    (C)
    3:1
  • 46
    Which of the following diseases commonly occur during brooding? I. yolk sac infection II. coccidiosis III. fowlpox IV. pullorum
    Respondre
    (B)
    I,II and IV only
  • 47
    Piglet anaemia can be controlled by using
    Respondre
    (B)
    iron drugs
  • 48
    Which of the following parasites lives inside the body of its host?
    Respondre
    (C)
    ascaris
  • 49
    Tsetse flies are of economic importance in livestock production because they transmit
    Respondre
    (B)
    trypanosome
  • 50
    A young female cattle which has never calved is known as
    Respondre
    (D)
    heifer