WAEC - Agricultural Science (2019)

• 1

  Which of the following statements best describes commercial farming?

  回答

  (B)

  large scale agricultural production for sale
• 2

  Which of the following problems are associated with agricultural marketing in West Africa? I.seasonality of produce II.Transportation of produce III.Access to credit 

  回答

  (B)

  I and III only
• 3

  An advantage of communal land tenure system is that it?

  回答

  (B)

  makes land cheap to acquire
• 4

  Which of the following implements is used for primary tillage?

  回答

  (C)

  plough
• 5

  

  Study and answer this question below

   

  A periodic maintenance activity carried out on the illustrated farm machinery is?

  回答

  (C)

  changing engine oil
• 6

  A disadvantage of farm mechanization?

  回答

  (B)

  displacement of farm workers
• 7

  Calculate in hectares the area of a rectangular farmland with dimensions 50m by 25m?

  回答

  (D)

  0.125ha
• 8

  The practice of measuring and mapping out the size, position and boundary of a farmland is called farm?

  回答

  (C)

  surveying
• 9

  Which of the following statement about land is not correct?

  回答

  (D)

  it can be relocated
• 10

  A socio-cultural factor affecting land availability is?

  回答

  (B)

  religion
• 11

  A biotic factor affecting agricultural production is?

  回答

  (B)

  predator
• 12

  Which of the following groups of organisms are parasites plants?

  回答

  (C)

  Dodder, fungus and striga
• 13

  The type of rock formed from accumulation of materials transported by water is called?

  回答

  (A)

  sedimentary rock
• 14

  A fresh garden soil sample weighed 25kg. When oven-dried, its weight reduced to 20kg. Calculate the percentage moisture content of the soil sample.

  回答

  (C)

  20.0%
• 15

  Which of the following mineral elements is essential for chlorophyll formation?

  回答

  (D)

  magnesium
• 16

  

  Study and answer this question

  The soil horizon that is not supportive of the growth of tree crops is?

  回答

  (D)

  horizonD
• 17

  Liquid fertilizers and pesticides could be applied through?

  回答

  (C)

  sprinkler irrigation
• 18

  In a crop rotation system, it is usually preferred that cassava comes last in the rotation because it?

  回答

  (C)

  is a deep rooted crop
• 19

  The growing of only one crop on a piece of land from year to year is known as?

  回答

  (C)

  monoculture
• 20

  In green manuring, crops are ploughed into the soil just before flowering in order to?

  回答

  (B)

  enrich the soil with nutrients
• 21

  Corns, rhizomes and tubers are examples of?

  回答

  (B)

  underground stems
• 22

  Which of the following statements is not a reason for budding? The resulting plants_______

  回答

  (A)

  can withstand adverse climatic conditions
• 23

  Which of the following statements are advantages of mulching? it I.Controls weeds II.Conserves soil moisture. III.Increases soil temperature. IV.Reduces soil pH.

  回答

  (A)

  I and II
• 24

  A planting material used in propagating plaintain is the?

  回答

  (A)

  crown
• 25

  If maize seed is sown at a spacing of 100cm x 50cm, determine the expected maize plant population per hectare? 

  回答

  (B)

  20,000
• 26

  Protective functions of forests include the following except

  回答

  (D)

  source of firewood
• 27

  The growth of both trees and arable crops on the same piece of land is?

  回答

  (D)

  taungya system
• 28

  Sexual propagation of omamental plants involves the use of?

  回答

  (B)

  seeds
• 29

  The vector of leaf curl disease of cotton is?

  回答

  (D)

  white fly
• 30

  A major storage pest of cereals in West Africa is?

  回答

  (B)

  weevil
• 31

  Biological control of insect-pests of crops is carried out through?

  回答

  (B)

  use of predators
• 32

  During the production of palm oil, the oil palm fruits are boiled in order to?

  回答

  (D)

  separate mesocarp from endocarp
• 33

  Which of the following breeds of cattle is exotic?

  回答

  (C)

  friesian
• 34

  

  The diagram above represents the digestive system of a?

  回答

  (B)

  cock
• 35

  

  The main function of the part labelled I is?

  回答

  (A)

  temporary storage of food
• 36

  Which of the following hormones is responsible for oestrus in farm animals?

  回答

  (B)

  oestrogen
• 37

  In animal production, immature spermatozoa are stored in the?

  回答

  (C)

  epididymis
• 38

  The least important factor for successful incubation of eggs is?

  回答

  (A)

  light
• 39

  The wallow should be provided in the pen of pigs in order to?

  回答

  (D)

  cool the temperature of pigs
• 40

  The data for feed consumption and weight gain of our four farm animals labelled P,Q,R and S are shown below.

  Use the data to answer this question correctly 

  P: 50kg feed consumed and 20kg weight gained.

  Q: 90kg feed consumed and 30kg weight gained.

  R: 100kg feed consumed and 25kg weight gained.

  S: 150kg feed consumed and 30kg weight gained.

   

  Which of the animals is the most efficient feed converter?

  回答

  (A)

  P
• 41

  The data for feed consumption and weight gain of our four farm animals labelled P,Q,R and S are shown below.

  Use the data to answer this question correctly 

  P: 50kg feed consumed and 20kg weight gained.

  Q: 90kg feed consumed and 30kg weight gained.

  R: 100kg feed consumed and 25kg weight gained.

  S: 150kg feed consumed and 30kg weight gained.

   

  The feed conversion efficiency of the poorest weight gainer is?

  回答

  (D)

  0.20
• 42

  Bone meal is usually included in the diet of livestock to supply?

  回答

  (A)

  calcium and phosphorus
• 43

  Which of the  following statement about inbreeding in farm animal is/are false? I.Inbred animals reach market weight early II.Inbred animals have reduced vigour III.Inbreeding increases the occurrences of undesirable traits

  回答

  (A)

  I Only
• 44

  Which of the following parasites may be found in the gut of livestock?

  回答

  (C)

  Roundworm
• 45

  Vegetative growth in fish ponds?

  回答

  (D)

  moderates pond temperature