WAEC - Agricultural Science (1997)

• 1

  Which of the following is not correct about the importance of agriculture?

  回答

  (D)

  serving as main source of foriegn exchange
• 2

  Most of the land used for agriculture in Nigeria are acquired through

  回答

  (E)

  inheritance
• 3

  The roles of government in the development of agriculture include the following except

  回答

  (E)

  training of farmers children
• 4

  Which of the following in not an effect of the North-East trade winds on agriculture?

  回答

  (D)

  causing heavy rainfall
• 5

  Ice causes rock weathering

  回答

  (D)

  by exerting an abrasive action on rock fragments
• 6

  The following are characteristics of quartz except

  回答

  (D)

  having cleavage
• 7

  The factors which affect the number and the activities of soil micro-organisms include the following except

  回答

  (A)

  topography
• 8

  Which of the following does not influence rock weathering?

  回答

  (D)

  ammonification
• 9

  The amount of air and water in the soil is mostly affected by the

  回答

  (E)

  structure of the soil
• 10

  Which of the following is a soil micro-nutrient?

  回答

  (D)

  iron
• 11

  Crops grown in nitrogen deficient soil show the following characteristics except

  回答

  (E)

  timely ripening of fruits
• 12

  Which of the following is not a function of organic matter in the soil?

  回答

  (D)

  inhibiting seed germination
• 13

  The following crops can be grown as cover crops except

  回答

  (D)

  nicotiana tabacum
• 14

  Effects of overgrazing on soil include the following except

  回答

  (D)

  improvement of soil structure
• 15

  A farm practice which assists in maintaining the structure and fertility of soil and reduction in risk of the sun infestation is

  回答

  (C)

  crop rotation
• 16

  Drainage types include the following except

  回答

  (A)

  shadoof
• 17

  Energy for photosynthesis in crops is provided by

  回答

  (D)

  sun
• 18

  Cassava is normally planted at a spacing of about

  回答

  (B)

  0.75 m x 1.0 m
• 19

  Cassava is cultivated in many ecological zones because of its

  回答

  (B)

  tolerance to low rainfall and soil fertility
• 20

  The agent of controlled pollination in crops is

  回答

  (E)

  man
• 21

  Milling of rice is usually done

  回答

  (E)

  after winnowing and parboiling
• 22

  Common pasture grasses include the following except

  回答

  (D)

  gamba grass
• 23

  Which of the following is not a characteristic of a good pasture?

  回答

  (E)

  slow growth
• 24

  Which of the following is a pasture grass?

  回答

  (D)

  cynodon dactylon
• 25

  Reforestation is the

  回答

  (A)

  organised planting of trees in areas from which forest trees have been removed
• 26

  The tree species widely used in afforestation programme is

  回答

  (A)

  neem
• 27

  Which of the following is not a reason for converting a piece of land into a forest reserve?

  回答

  (C)

  disputed ownership of land
• 28

  The forest trees growing in the Sudan savanna zone of Nigeria include the following except

  回答

  (D)

  neem
• 29

  The most important pests of vegetable crops are

  回答

  (D)

  insects
• 30

  Which of the following group of crops can be attacked by smut diseases?

  回答

  (B)

  rice, maize and guinea corn
• 31

  Cultural methods of controlling pests include the following except

  回答

  (E)

  mulching
• 32

  The aims of crop improvement include the following except

  回答

  (E)

  improving the infracstructural facilities in a farm
• 33

  The branch of crop production which is normally concerned with crop improvement is

  回答

  (A)

  plant breeding
• 34

  Which of the following is the primary function of the gizzard?

  回答

  (C)

  grinding of ingested food into smaller particles
• 35

  The act of mating in cattle is known as

  回答

  (E)

  service
• 36

  Gestation period is defined as the time

  回答

  (B)

  between conception and prturition
• 37

  The hormone generally called pregnancy hormone in farm animals is

  回答

  (C)

  progesterone
• 38

  New-born animals should be fed with colostrum because it

  回答

  (B)

  contains antiboies protecting them against diseases
• 39

  Which of the following statement is not true about rearing livestock under the free range system?

  回答

  (C)

  adequate veterinary care
• 40

  Which of the following breeds of cattle is an imported breed?

  回答

  (B)

  N'dama
• 41

  Pigs are normally classified into the following group except

  回答

  (D)

  boars
• 42

  High fibre and low energy feeds are classified as

  回答

  (B)

  roughages
• 43

  The proportion of the different types of feed given to an animal daily is known as

  回答

  (D)

  ration
• 44

  Which of the following feed stuffs will not supply carbohydrate?

  回答

  (E)

  bone meal
• 45

  The main component of egg shell is

  回答

  (B)

  calcium
• 46

  The effects of practicing rotational grazing in a livestock farm include the following except

  回答

  (E)

  maintaining steady increase in growth rate of animals
• 47

  The causal organism of mastitis in cattle is

  回答

  (B)

  bacterium
• 48

  In cattle, high fever and sudden death are symptoms of

  回答

  (A)

  anthrax
• 49

  Night blindness in an animal is caused by a deficiency of

  回答

  (A)

  vitamin A
• 50

  An aquarium contains all the following except

  回答

  (B)

  pieces of broken wood
• 51

  Progeny selection involves selection of breeding stock on the basis of

  回答

  (E)

  performance of offspring
• 52

  The following are functions of farm manager except

  回答

  (E)

  planting crops and vegetables
• 53

  When granting loans to farmers, the credit officer should consider mostly the

  回答

  (D)

  production and essential need of the farmers
• 54

  Farm financing may be obtained from the following except

  回答

  (C)

  mortgage banks
• 55

  The difference between the total assets and total liabilities of a farm enterprise within a specified period before taxation is known as

  回答

  (E)

  networth