WAEC - Agricultural Science (2005)

  • 1
    Inadequate food production in most developing countries is due to
    উত্তর
    (B)
    inadequate technology
  • 2
    Which of the following groups of basic amenities should be provided in rural areas foe improves agricultural productivity?
    উত্তর
    (A)
    water,electricity and helth care centres
  • 3
    Government laws and reforms are aimed at
    উত্তর
    (A)
    increasing agricultural production
  • 4
    In order to ensure that crop and animal diseases are not transferred across international boundaries, government must
    উত্তর
    (C)
    have and enforce quarantine services
  • 5
    The role of science and technology in the development of agriculture includes the following except
    উত্তর
    (D)
    setting up produce marketing boards
  • 6
    The total land area of a country available for farming depends on the
    উত্তর
    (B)
    climate of the area
  • 7
    The scarcity of land often compels peasant farmers to practice
    উত্তর
    (C)
    taungya system
  • 8
    In West Africa, a greater part of the land is used for
    উত্তর
    (C)
    building houses
  • 9
    A piece of land can be considered more suitable for livestock production than for crop production when it is
    উত্তর
    (D)
    infested with weeds
  • 10
    The first vegetation zone which runs across the coast of most West African countries is the
    উত্তর
    (B)
    mangrove forest
  • 11
    The most active agent of physical weathering in arid regions is
    উত্তর
    (C)
    temperature
  • 12
    Soils in forest areas would normally have
    উত্তর
    (C)
    high proportion of humus
  • 13
    Clay particles hold cations because they
    উত্তর
    (A)
    are negatively charged
  • 14
    Under which of the following conditions will organic matter in the soil decompose fastest?
    উত্তর
    (C)
    anaerobic conditions
  • 15
    Which of the following materials can be applied to the soil in order to correct yellowing of leaves?
    উত্তর
    (B)
    urea
  • 16
    One importance of cover crops is that they
    উত্তর
    (D)
    suppress weed growth
  • 17
    The appropriate irrigation method for upland rice field is
    উত্তর
    (A)
    sprinkler
  • 18
    Drainage refers to
    উত্তর
    (A)
    removal of excess water from the soil
  • 19
    Energy in fossil materials may be harnessed as
    উত্তর
    (D)
    fuel energy
  • 20
    A decorticator is useful in the processing of
    উত্তর
    (A)
    maize
  • 21
    Which of the following types of survey reveals the physical features of farmlands?
    উত্তর
    (B)
    topographical survey
  • 22
    Calculate the area of a rectangular vegetable garden measuring 100m by 26m in hectares.
    উত্তর
    (A)
    0.250
  • 23
    Farm mechanization does not
    উত্তর
    (D)
    involve the use of only heavy machinery
  • 24
    A prolonged wet season at the early stage of growth in cotton will lead to
    উত্তর
    (B)
    tall plant with few bolls
  • 25
    The by-product in plant photosynthesis is
    উত্তর
    (D)
    oxygen
  • 26
    Which of the following reasons explain why fertilizers are added to soils?
    উত্তর
    (D)
    increasing the nutrient level
  • 27
    A crop which is usually propagated sexually is
    উত্তর
    (C)
    cowpea
  • 28
    Transplanting is best carried out in the evening because
    উত্তর
    (C)
    moisture losses are low during cold waether
  • 29
    Some cassava tubers are poisonous to non-ruminant because they contain
    উত্তর
    (B)
    hydrocyanic acid
  • 30
    Which of the following factors does not affect the distribution of pasture grasses?
    উত্তর
    (D)
    pests
  • 31
    Selective exploitation means felling trees of
    উত্তর
    (B)
    specific ages and girths
  • 32
    Streak disease of crop commonly attacks
    উত্তর
    (C)
    maize
  • 33
    Most viral diseases of plants are transmitted by
    উত্তর
    (C)
    insects
  • 34
    Viral diseases of crop plants are best controlled by
    উত্তর
    (A)
    planting resistant varieties
  • 35
    The following problems are likely to be caused by insects except
    উত্তর
    (B)
    rottening of cobs in storage
  • 36
    Weed plants which grow on other plants without deriving nutrients from them are called
    উত্তর
    (B)
    epiphytes
  • 37
    When a farmland is heavily infested with striga, it may be concluded that the farmland
    উত্তর
    (C)
    may have been used for growing guinea corn
  • 38
    Mulching
    উত্তর
    (A)
    reduces evaporation of soil water
  • 39
    An accessory sex gland in a bull is
    উত্তর
    (A)
    prostate gland
  • 40
    The most important reason for low livestock population in the rain forest zone is the
    উত্তর
    (C)
    growth and proliferation of pathogens
  • 41
    Which of the following feedstuffs does not contain phosphorous?
    উত্তর
    (B)
    limestone
  • 42
    When an animal eats wood and licks iron railing instead of the diet given to it, it is likely that the
    উত্তর
    (C)
    diet is deficient in essential elements
  • 43
    An indication that chicks are comfortable in a brooder is that they
    উত্তর
    (C)
    spread themselves uniformly under the hover
  • 44
    Mastitis is a disease which affects the
    উত্তর
    (B)
    udder
  • 45
    The following are signs of ill-health in farm animals except
    উত্তর
    (B)
    bright eyes
  • 46
    A protozoon organism causes
    উত্তর
    (A)
    coccidiosis
  • 47
    An animal infected by trypanosomiasis usually develops
    উত্তর
    (C)
    anaemia and swollen lymph gland
  • 48
    The purpose of vaccination is to
    উত্তর
    (B)
    prevent disease infection
  • 49
    Which of the following livestock endoparasites is a hermaphrodite?
    উত্তর
    (C)
    tapeworm
  • 50
    The most effective method of controlling ectoparasites in farm animals is by regular
    উত্তর
    (B)
    dipping of animals in a solution of pesticides
  • 51
    A common means of aerating a fish pond is by stirring the water and
    উত্তর
    (A)
    removing dead and decaying matter
  • 52
    Heterosis in animal breeding is referred to as
    উত্তর
    (A)
    hybrid vigour
  • 53
    In areas where labour is scarce and land is abundant, farmers tend to
    উত্তর
    (B)
    practice mechanized farming
  • 54
    The supply of farm produce to markets in West Africa is mostly dictated by
    উত্তর
    (D)
    the consumers
  • 55
    Farm insurance schemes do not cover losses due to
    উত্তর
    (B)
    heavy pest infestation