WAEC - Agricultural Science (2022)

• 1

  To reduce rural-urban migration, the government should

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  (B)

  provide social infrastructure
• 2

  The establishment of cooperative farming is encouraged by governments because it

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  (C)

  enables individual farmers to acquire capital
• 3

  A non-governmental organization involved in agricultural development in West Africa is

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  (A)

  Operation Feed the Nation
• 4

  The diagram below illustrates a farm implement. Use it to answer this question.
  

  The illustrated farm implement i used for

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  (B)

  breaking up soil into clods
• 5

  

  The diagram above illustrates a farm implement. Use it to answer this question.

  The part of the illustrated farm implement that enables it to roll over obstacles is labelled

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  (C)

  III
• 6

  The diagram below illustrates a farm implement. Use it to answer this question.
  

  The function of the part labelled II is to 

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  (A)

  remove soil
• 7

  A combine harvester can be used simultaneously to harvest

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  (D)

  cereals and winnow grains
• 8

  Ranging poles used in farm surveying have characteristic

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  (C)

  red and white bands
• 9

  Decomposition of soil organic matter is mainly caused by 

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  (A)

  bacteria
• 10

  The main factors responsible for rock weathering in the desert are high temperature and 

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  (B)

  water
• 11

  A difference between physical and chemical weathering is that

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  (B)

  the mineral composition of rock is changed in chemical weathering.
• 12

  Use the information below to answer this question.
  In an experiment on soil porosity, the following results were obtained:
  Volume of dry soil = 52cm³
  Volume of water= 48cm³
  Volume of soil and water=78cm³

  Determine the volume of airspace in the soil sample.

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  (A)

  22cm³
• 13

  Use the information below to answer this question.
  In an experiment on soil porosity, the following results were obtained:
  Volume of dry soil = 52cm³
  Volume of water= 48cm³
  Volume of soil and water=78cm³

  Calculate the porosity of the soil sample

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  (B)

  42.31%
• 14

  The diagram below illustrates a tool used to analyse a soil sample in an experiment. Use it to answer this question.
  

  The aim of the experiment is to determine the soil

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  (B)

  texture
• 15

  

  The diagram above illustrates a tool used to analyse a soil sample in an experiment. Use it to answer this question.
  The part labelled Ill will contain

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  (D)

  fine sand
• 16

  

  The diagram above illustrates a tool used to analyze a soil sample in an experiment. Use it to answer this qu

  The diameter of the soil particle that would be retained in the part labelled II is

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  (B)

  0.02 - 0.2 mm
• 17

  Potassium deficiency in cereal crops Is indicated by

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  (A)

  browning of leaves Trom the tips and margins
• 18

  Nitrogen is important in plants because it is mainly needed in

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  (C)

  leaf formation
• 19

  Water can be conserved in the soil by

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  (A)

  mulching, strip cropping and cover cropping
• 20

  Monocotyledonous crops include

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  (A)

  oil palm, rice, and plantain.
• 21

  Swampy lands are most suitable for growing

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  (B)

  rice
• 22

  If maize seeds are sown at a spacing of 60 cm by 90 cm, what is the plant population of maize expected on one hectare of farmland?

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  (D)

  5,400 plants
• 23

  The practice of placing the correct number of seeds in the soil with definite intra-row and inter-row spacing is called

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  (A)

  seed drilling
• 24

  Which of the following groups of crops will thrive in areas with high rainfall?

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  (D)

  Cocoa, oil palm and rubber
• 25

  Capping is a cultural practice carried out in the cultivation of

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  (B)

  cassava
• 26

  Damping of disease of tomato could be controlled by

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  (A)

  staking
• 27

  The most common way of controlling weeds in tree crop plantations is by

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  (D)

  slashing
• 28

  Which of the following crops is correctly matched with a disease that affects it?

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  (A)

  Maize - smut
• 29

  Soil-borne diseases could be controlled in the nursery by

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  (C)

  heat treatment
• 30

  Use the information below to answer this question.
  I. Yellowing of leaves
  II. Raised brown spots on the leaves
  III. Drying up of leaves
  IV. Exudation of gum

  The disease of citrus described above is

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  (B)

  gummosis
• 31

  The diagram below illustrates the digestive system of a farm animal. Use it to answer this question.
  

  The diagram illustrates the digestive system of a

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  (A)

  chicken
• 32

  The diagram below illustrates the digestive system of a farm animal. Use it to answer this question.
  

  The part labelled lll is the

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  (B)

  caecum
• 33

  

  The diagram above illustrates the digestive system of a farm animal. Use it to answer this question.

  Digestion of fats takes place in the part labelled

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  (D)

  IV
• 34

  Lactation normally occurs

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  (C)

  after gestation.
• 35

  A by-product of all livestock is

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  (B)

  horn
• 36

  Removal of  needle teeth is important in the management of

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  (D)

  piglets
• 37

  Which of the following farm animals will browse more on plants in a pasture?

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  (A)

  Goats
• 38

  The main reason for castrating farm animals is to

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  (B)

  make the animal sterile
• 39

  Which of the following statements about silage are true?
  I. It has a laxative effect
  II. is acidic in reaction.
  III. has a strong aroma when well prepared

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  (B)

  I and III only
• 40

  If 200 layers require 25 kg of layer mash per day, calculate the quantity of feed required by 1,000 layers per day.

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  (C)

  80kg
• 41

  Salt licks are provided for grazing animals to

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  (A)

  make the pasture palatable.
• 42

  The correct order of arrangement of ration for piglets from day old is

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  (B)

  creep>weaners>growers>finisher.
• 43

  In farming enterprise, short term loans are used to

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  (D)

  purchase agrochemicals
• 44

  The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.

  DATE	NUMBER OF HENS	TOTAL EGGS COLLECTED	TOTAL EGGS SOLD
  4th June	362	176	96
  5th June	360	199	108
  6th June	360	177	48

  The table illustrates

   

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  (B)

  a production record
• 45

  The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.

  DATE	NUMBER OF HENS	TOTAL EGGS COLLECTED	TOTAL EGGS SOLD
  4th June	362	176	96
  5th June	360	199	108
  6th June	360	177	48

  Calculate the total amount of eggs sold on the farm.

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  (D)

  252