WAEC - Agricultural Science (1990)

  • 1
    Subsistence farming can be appropriately described as planting of crops and rearing of livestock
    คำตอบ
    (D)
    for the benefit of the farmer and his family
  • 2
    Which of the following is not the role of government in agricultural production?
    คำตอบ
    (E)
    provision of labour
  • 3
    In encouraging farmers to produce more of a particular crop, the Nigerian government has helped farmers in marketing that crop through the establishment of
    คำตอบ
    (C)
    marketing boards
  • 4
    Which of the following factors affecting land availability and use is a socio-economic factor?
    คำตอบ
    (A)
    population pressure
  • 5
    A crop not requiring more than 750 mm annual rainfall is most suitable for cultivation in
    คำตอบ
    (B)
    sahel savanna
  • 6
    The major factor influencing the physical or mechanical breakdown of rocks into finer particles include the following except
    คำตอบ
    (E)
    solution
  • 7
    Which of the following nutrient element is a macro-nutrient?
    คำตอบ
    (A)
    phosphorus
  • 8
    Which of the following is a disadvantage of using organic manure on the soil?
    คำตอบ
    (A)
    spreading of pests and diseases
  • 9
    Which of the following factors is not considered in 5the use of irrigation?
    คำตอบ
    (E)
    prevention of salt accumulation through adequate drainage
  • 10
    By which of the following ways is the agricultural production in Nigeria affected by topography
    คำตอบ
    (E)
    influencing the area of land, actually available for agriculture
  • 11
    Which of the following will not contribute to soil formation in Nigeria?
    คำตอบ
    (E)
    glaciation
  • 12
    The type of soil formed is affected by the following factors except
    คำตอบ
    (A)
    farming systems
  • 13
    Which of the following is the function of nitrosomonas in the nitrogen cycle?
    คำตอบ
    (C)
    nitrification
  • 14
    Which of the following farm practices does not have a very harmful effect on the soil?
    คำตอบ
    (A)
    crop rotation
  • 15
    Soil can be drained by the use of the following except
    คำตอบ
    (A)
    sprinklers
  • 16
    What are give and take lines often used in farm surveying?
    คำตอบ
    (E)
    measuring farms with irregular boundaries
  • 17
    Which of the following is not a limitation of farm mechanization?
    คำตอบ
    (E)
    labour
  • 18
    Incubators are used to supply heat to
    คำตอบ
    (E)
    fertilized egg for chick development
  • 19
    Root knot of tomato is caused by a
    คำตอบ
    (E)
    nematode
  • 20
    If the seed rate for guinea corn is 5.6 kg per hectare, what will be the amount of seeds required for planting 35 acre farm?
    คำตอบ
    (B)
    78.4
  • 21
    The most common weed of pastures in Nigeria is
    คำตอบ
    (A)
    spear grass
  • 22
    The following are forestry crops except
    คำตอบ
    (C)
    anarcadium
  • 23
    The pest designated as a national pest by the Nigeria Agricultural Advisory Council is
    คำตอบ
    (A)
    variegated grasshopper
  • 24
    Which of the following groups comprises only oil crops?
    คำตอบ
    (C)
    coconut, cotton and sunflower
  • 25
    The mosaic symptom commonly associated with viral diseases of crops can be best observed on
    คำตอบ
    (C)
    leaves
  • 26
    Pests of crops that feed by piercing and sucking plants include the following except
    คำตอบ
    (A)
    stem borers
  • 27
    Maize grows best on
    คำตอบ
    (D)
    loamy soil
  • 28
    Soil may be exposed to erosion when a pasture is
    คำตอบ
    (B)
    overgrazed
  • 29
    Taungya farm involves the combination of
    คำตอบ
    (B)
    crop husbandary and forestry
  • 30
    The destructive effects of variegated grasshoppers are conspicuously observed on
    คำตอบ
    (D)
    maize and cassava crops
  • 31
    A castrated male fowl is known as
    คำตอบ
    (B)
    capon
  • 32
    The type of feed which contains the essential nutrients in the right concentrations and proportions is known as
    คำตอบ
    (E)
    balance diet
  • 33
    Which of the following is not a reason why planting a mixture of grass and legume on a pasture is economical to the farmer? The
    คำตอบ
    (A)
    mixture can harbour pests
  • 34
    The parts of the body affected by Newcastle disease of poultry are the
    คำตอบ
    (C)
    nervous system and respiratory tract
  • 35
    A fish pond in an enclosed body of water is for
    คำตอบ
    (A)
    rearing fish for consumption
  • 36
    The breed of goat noted for its production of high quality morocco leather is the
    คำตอบ
    (E)
    sokoto red
  • 37
    Which of the following is not a source of minerals in animal nutrition?
    คำตอบ
    (E)
    palm oil
  • 38
    The following are all leguminous forage crops except
    คำตอบ
    (D)
    panicum maximum
  • 39
    Which of the following livestock diseases is transmitted by ticks?
    คำตอบ
    (A)
    red water
  • 40
    Dissolved oxygen in fish ponds is maintained at normal level in order to
    คำตอบ
    (D)
    keep fish activities normal
  • 41
    Which of the following is not a quality for selecting livestock?
    คำตอบ
    (A)
    feed consumption
  • 42
    Investments with long life span in agricultural economics are otherwise known as
    คำตอบ
    (E)
    capital
  • 43
    Under normal circumstances, the concept of consumer sovereignty in agriculture implies that
    คำตอบ
    (A)
    the consumer and not the farmer determines what to produce
  • 44
    Agricultural credits given to farmers in form of cash are used by the farmer to
    คำตอบ
    (E)
    pay for expenses in his farming business
  • 45
    Farm records and account help the farmer to
    คำตอบ
    (A)
    manage his farm as a business