WAEC - Agricultural Science (1995)

• 1

  The most important factor that determines the rate of agriculture development in a country is the

  回答

  (A)

  readiness of farmers to adopt viable agricultural research results
• 2

  The newly introduced government agricultural programme in Nigeria is

  回答

  (C)

  agricultural development projects
• 3

  A characteristic feature of subsistence agriculture is

  回答

  (A)

  supply of labour by farm families
• 4

  Which of the following will retain the greatest amount of water?

  回答

  (A)

  clay
• 5

  The most common soil mineral found in all crystalline rocks and a main constituent of granite and sandstone is

  回答

  (B)

  quartz
• 6

  The factors affecting formation of soil include the following except

  回答

  (D)

  catena
• 7

  Inhibition of root and bark development, fruiting and seed formation in crops is due to the deficiency of

  回答

  (A)

  phosphorus
• 8

  Which of the following is not an effect of grazing on the soil?

  回答

  (D)

  increase in soil acidity
• 9

  In underground drainage

  回答

  (C)

  water seeps into the tiles to reach an outlet where water is disposed
• 10

  Which of the following is not an edaphic factor affecting agricultural production?

  回答

  (C)

  predators
• 11

  A metamorphic limestone is

  回答

  (A)

  marble
• 12

  A soil with pH2 can be described as

  回答

  (E)

  highly acidic
• 13

  Which of the following will be responsible for the poor yield of fertile soil in a high rainfall area?

  回答

  (A)

  leaching of soil nutrients
• 14

  Crop rotation has the following effects on the soil except

  回答

  (E)

  predisposing soil to leaching
• 15

  Flood irrigation is mainly used in

  回答

  (A)

  arid area
• 16

  Which of the following factors has the greatest influence on crop production?

  回答

  (A)

  light
• 17

  Which of the following is not a reason for preferring rotational grazing to continuous grazing?

  回答

  (E)

  avoiding excessive amount of organic manuring
• 18

  The study and management of forests and forest resources is known as

  回答

  (D)

  forestry
• 19

  The most suitable soil for cultivating yam is

  回答

  (E)

  clay loam
• 20

  Jute, cotton and sisal are

  回答

  (C)

  fibre crops
• 21

  Which of the following diseases of crops causes stunting in maize?

  回答

  (E)

  smut
• 22

  When individual crop with desired characteristic mostly favoured by the environment are chosen for breeding this type of breeding is referred to as

  回答

  (D)

  selection
• 23

  Molasses is a major by-product obtained after the processing of

  回答

  (B)

  sugarcane
• 24

  Rice bran is usually obtained from the paddy after

  回答

  (E)

  milling and polishing
• 25

  Yams stored in a barn should be inspected at least once a week to

  回答

  (E)

  remove sprouts and rotten tubers
• 26

  A major routine operation in cowpea production which normally starts from flowering stage is

  回答

  (A)

  weekly spraying with insecticides
• 27

  The mesocrap of an oil palm fruit is

  回答

  (E)

  pulp
• 28

  Blackarm is a bacterial disease of

  回答

  (B)

  cotton
• 29

  The female sex hormone that is responsible for oestrus in farm animal is called

  回答

  (D)

  oestrogen
• 30

  The fertility of the soil is an important factor in the selection of site for a fish pond because a fertile soil will

  回答

  (B)

  stimulate growth of lower plants which are sources of food to fish
• 31

  Air sacs are present in

  回答

  (A)

  poultry
• 32

  The gestation period in days of a sow is

  回答

  (C)

  114
• 33

  The castrated male cattle is referred to as

  回答

  (E)

  steer
• 34

  The amount of livestock feed needed to prevent either an increase or a decrease in live weight of an animal is referred to as

  回答

  (A)

  maintenance ration
• 35

  The water-snail is important in the life-cycle of

  回答

  (C)

  liver fluke
• 36

  Control of water level in a fish pond with minimal loss of fish can be achieved with the aid of

  回答

  (B)

  monk with panel, screens and outlet channel
• 37

  Male spermatozoa is produced in the

  回答

  (B)

  testicles
• 38

  The main function of ground maize in livestock feed is for

  回答

  (A)

  providing energy
• 39

  The discontinuation of feeding young animal with milk is known as

  回答

  (A)

  wearing
• 40

  N'dama cattle are well adapted to West Africa mainly because the breed

  回答

  (B)

  is resistant to trypanosomiasis
• 41

  The anti-sterility vitamin in livestock nutrition is vitamin

  回答

  (B)

  E
• 42

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

  回答

  (D)

  low leaf to stem ration
• 43

  The mode of infection of rinderpest disease in cattle id through

  回答

  (B)

  drinking water
• 44

  Which of the following characteristic is not normally considered in the selection of animal for breeding?

  回答

  (E)

  horn size
• 45

  Land in agricultural business is said to be a durable asset. This means land

  回答

  (A)

  value is realized over several years