WAEC - Agricultural Science (2011)

  • 1
    Agriculture contributes to the economy of West African Countries through the following means except
    إجابة
    (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
    إجابة
    (A)
    I, II and III only
  • 3
    Under the commercial land tenure system, farmers find it difficult to secure loans because
    إجابة
    (C)
    land holdings cannot be used as security
  • 4
    Government plays important role in the development of agriculture through the following means except
    إجابة
    (A)
    provision of subsidies
  • 5
    Which of the following factors does not influence the distribution of cattle in West Africa?
    إجابة
    (B)
    light
  • 6
    Poaching is prohibited in game reserves to
    إجابة
    (B)
    conserve wildlife
  • 7
    Soil water that is available for root absorption at field capacity is
    إجابة
    (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
    إجابة
    (C)
    I,II and IV only
  • 9
    In which layer of the soil profile do most biological activities occur?
    إجابة
    (D)
    A-horizone
  • 10
    Which of the following statements is correct about micro-nutrients? They
    إجابة
    (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
    إجابة
    (B)
    I and IV only
  • 12
    Which of the following statements about soil organisms is false?
    إجابة
    (C)
    soil with good texture and structure cannot harbour soil microbes
  • 13
    A detrimental effect of bush burning is that it
    إجابة
    (A)
    destroys soil organic matter
  • 14
    The following crops will enrich the soil with nitrates except
    إجابة
    (D)
    exoriepus
  • 15
    Which of the following groups of rocks is formed as a result of volcanic eruption?
    إجابة
    (B)
    basalt,granite and pumice
  • 16
    The following fertilizers can be used to neutralize soil acidity except
    إجابة
    (B)
    ammonium nitrate
  • 17
    The following are advantages of sub-surface irrigation except that
    إجابة
    (B)
    it can be used only for specific types of crops
  • 18
    Which of the following statement is a disadvantage of human power? it
    إجابة
    (D)
    has low output
  • 19
    The instrument which enables a surveyor to find the direction of a base line is
    إجابة
    (D)
    magnetic compass
  • 20
    Limitations of farm mechanization in West Africa do not include
    إجابة
    (A)
    land fragmentation
  • 21
    The use of animal traction is limited in the forest zones of West Africa because of the
    إجابة
    (B)
    presence of tsetseflies
  • 22
    The correct sequence for the use of coupled implements for land preparation is
    إجابة
    (A)
    plough,horrow and ridger
  • 23
    Corms,rhizomes and tubers are examples of
    إجابة
    (A)
    underground stems
  • 24
    Tomatoes are staked in order to
    إجابة
    (D)
    prevent rotting of fruits
  • 25
    In crop production, ginger is propagated by
    إجابة
    (C)
    rhizome
  • 26
    A regulatory control of diseases in crop production is
    إجابة
    (B)
    quarantine
  • 27
    Yellow colouration of the lower leave of a growing maize plant may be due to deficiency in
    إجابة
    (D)
    nitrogen
  • 28
    Which of the following insects transmits swollen shoot disease of cocoa?
    إجابة
    (B)
    mealybug
  • 29
    The main objectives of establishing forest in the arid regions is to
    إجابة
    (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
    إجابة
    (B)
    taungya
  • 31
    Pineapple is widely propagated using
    إجابة
    (B)
    suckers
  • 32
    Which of the following crops has a fibrous root system?
    إجابة
    (D)
    sugarcane
  • 33
    The process of grafting in crop production involves
    إجابة
    (D)
    the joining of two parts from related crops
  • 34
    Crop rotation decreases the incidence of pests by
    إجابة
    (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.
    إجابة
    (B)
    2,000
  • 36
    Close to the time of harvesting of cotton, sunshine is needed to ensure the production of boils that are
    إجابة
    (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
    إجابة
    (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
    إجابة
    (B)
    1:2:1
  • 39
    The correct sequence of feed utilization in farm animals is
    إجابة
    (C)
    ingestion-digestion-assimilation
  • 40
    Sexual maturity in farm animal is not influenced by their
    إجابة
    (B)
    sex
  • 41
    A sow that is not producing milk after farrowing should be given
    إجابة
    (A)
    oxytocin
  • 42
    In preparing for parturition of a sow,warmth should be provided to
    إجابة
    (D)
    prevent chilling of the young
  • 43
    The device which would help to stabilize heat in an incubator is the
    إجابة
    (D)
    thermostat
  • 44
    In animal production, newly-born rabbits are called
    إجابة
    (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.
    إجابة
    (C)
    3:1
  • 46
    Which of the following diseases commonly occur during brooding? I. yolk sac infection II. coccidiosis III. fowlpox IV. pullorum
    إجابة
    (B)
    I,II and IV only
  • 47
    Piglet anaemia can be controlled by using
    إجابة
    (B)
    iron drugs
  • 48
    Which of the following parasites lives inside the body of its host?
    إجابة
    (C)
    ascaris
  • 49
    Tsetse flies are of economic importance in livestock production because they transmit
    إجابة
    (B)
    trypanosome
  • 50
    A young female cattle which has never calved is known as
    إجابة
    (D)
    heifer