WAEC - Agricultural Science (2020)

  • 1
    A nation exports agricultural produce mainly to?
    پاسخ دهید
    (C)
    earn foreign exchange
  • 2
    Quarantine measures in agriculture are aimed at?
    پاسخ دهید
    (B)
    preventing the introduction of pests and diseases
  • 3
    Which of the following statement is not true about farming in West Africa?
    پاسخ دهید
    (D)
    mechanisation is fully adopted
  • 4
    Mechanical power is not usually required in?
    پاسخ دهید
    (C)
    staking of yams
  • 5

    The illustrated equipment is called?

    پاسخ دهید
    (D)
    ranging pole
  • 6

    The illustrated equipment is used for?

    پاسخ دهید
    (A)
    making drills
  • 7

    Calculate the area of the farmland.

    پاسخ دهید
    (B)
    0.36ha
  • 8
    The major objective of farm planning is to?
    پاسخ دهید
    (A)
    maximize the use of available resources
  • 9

    Which factor of production has the following characteristics?

    I.Free gift of nature
    II.Limited in supply
    III.Immobile

    پاسخ دهید
    (A)
    land
  • 10
    Igneous rocks can easily be identified through their?
    پاسخ دهید
    (B)
    coarse texture
  • 11
    Water which rises above the water table in the soil and is held in fine medium pores between soil particles by surface tension is?
    پاسخ دهید
    (C)
    capillary water
  • 12
    An oven dried soil sample of mass 8g had a mass of 1.6g after it was completely burnt. Determine the percentage of humus in the soil sample.
    پاسخ دهید
    (D)
    80%
  • 13
    The deficiency of nitrogen in a maize plant can be corrected by applying?
    پاسخ دهید
    (C)
    sulphate of ammonia
  • 14
    The structure of sandy soils can be described as?
    پاسخ دهید
    (C)
    single-grained
  • 15

    The cropping system illustrated in the table is?

    پاسخ دهید
    (B)
    crop rotation
  • 16

    Which of the following crops can conveniently replace maize in the table?

    پاسخ دهید
    (D)
    millet
  • 17
    The following bacteria are important in the nitrogen cycle except?
    پاسخ دهید
    (D)
    rhizobium
  • 18
    Determine the ratio of nutrients in NPK 5-10-15.
    پاسخ دهید
    (B)
    1:2:3
  • 19
    Which of the following methods of irrigation is most efficient in terms of water conservation?
    پاسخ دهید
    (D)
    drip irrigation
  • 20
    Which of the following crops is dicotyledonous?
    پاسخ دهید
    (D)
    vigna unguiculata
  • 21
    Crops which grow and mature within few weeks of their cultivation are called?
    پاسخ دهید
    (B)
    ephemeral crops
  • 22
    If the yield of cowpea is 750kg per hectare, calculate the yield of cowpea from a 20 hectare farm.
    پاسخ دهید
    (B)
    15,000kg
  • 23

    Which of the following statements about threshing of rice are true?

    I.Rice grains are separated from the panicle
    II.Breakage of some grains could occur
    III.The grains are polished

    پاسخ دهید
    (D)
    I, II and III
  • 24
    An important reason for staking yam is to?
    پاسخ دهید
    (A)
    expose the leaves to sunlight
  • 25
    A crop that can be propagated by stem cutting is?
    پاسخ دهید
    (C)
    cassava
  • 26
    Which of the following diseases of tomato is caused by nematode?
    پاسخ دهید
    (A)
    fusarium wilt
  • 27
    The yield of cocoa trees is not influenced by?
    پاسخ دهید
    (C)
    method of harvesting
  • 28
    The following crops are fiber crops except?
    پاسخ دهید
    (B)
    onion
  • 29
    The fencing and partitioning of a pastureland into paddocks is meant to?
    پاسخ دهید
    (B)
    control grazing and ensure regeneration of pasture
  • 30
    When a gene is expressed in the phenotype in a homoxygous or heterogous form, that gene is said to be?
    پاسخ دهید
    (C)
    regeneration
  • 31
    Uncontrolled burning of forests encourages?
    پاسخ دهید
    (A)
    deforestation
  • 32
    Which of the following tree species is suitable for making electric poles?
    پاسخ دهید
    (D)
    teak
  • 33
    A pest that attacks stored maize grain is?
    پاسخ دهید
    (B)
    rodent
  • 34
    An agricultural system which combines crop production with forest establishment is known as?
    پاسخ دهید
    (B)
    taungya farming
  • 35
    An important characteristic of pigs is that they are?
    پاسخ دهید
    (A)
    highly prolific
  • 36
    Digestion in ruminants is mainly?
    پاسخ دهید
    (D)
    microbial and enzymatic
  • 37
    If 30 eggs make up a crate of eggs, how many eggs are in 2 packs assuming a pack contains 10 crates of eggs?
    پاسخ دهید
    (D)
    600 eggs
  • 38
    In a brooder house, which of the following factors is monitored with the use of wet and dry hygrometer?
    پاسخ دهید
    (C)
    relative humidity
  • 39
    Which of the following statements is not a reason for feeding farm animals?
    پاسخ دهید
    (C)
    production of inorganic manure
  • 40
    Rickets in farm animals can be controlled by?
    پاسخ دهید
    (D)
    adding fish meal and oyster shell to animal feed
  • 41
    The methods of rangeland improvement which ensure continuous herbage growth during the dry season are?
    پاسخ دهید
    (C)
    fertiliser application and irrigation
  • 42
    Tapeworm, liver fluke and roundworm can be controlled by?
    پاسخ دهید
    (B)
    drenching
  • 43

    The part which a bait is attached before lowering the tool in water is labelled?

    پاسخ دهید
    (D)
    I
  • 44

    Which of the labelled parts enables the tool to float on water when fish is caught?

    پاسخ دهید
    (A)
    IV
  • 45
    Which of the following statements is not a precaution measure in bee keeping?
    پاسخ دهید
    (A)
    the apiary should not be fenced to allow for proper ventilation