WAEC - Agricultural Science (2014)

• 1

  Commercial agriculture is characterised by

  回答

  (A)

  use of machines
• 2

  The most common method of acquiring land in West Africa is by

  回答

  (D)

  inheritance
• 3

  The agricultural sector in West Africa is plagued with poverty because

  回答

  (B)

  yields obtained per annum are relatively low
• 4

  The function of the seed -tube of a seed drill is to

  回答

  (A)

  transport seeds from the metering device to the furrow opener
• 5

  The machine used for removing seeds from maize cobs is called a

  回答

  (D)

  sheller
• 6

  The appropriate farm tool for lifting tomato seedlings for transplanting is the

  回答

  (C)

  hand trowel
• 7

  It is important to clean and grease plough discs after use to

  回答

  (A)

  prevent rusting
• 8

  Wind can be beneficial to crop production because it

  回答

  (B)

  aids pollination of crops
• 9

  The method of surface irrigation widely used in rice fields is

  回答

  (B)

  wild flooding
• 10

  The practice of growing different crops in sequence on a piece of land is known as

  回答

  (C)

  crop rotation
• 11

  Which of the following is not an effect of over-graing on soil?

  回答

  (A)

  Improvement of soil structure
• 12

  The major factor affecting distribution of crops in West Africa is

  回答

  (A)

  climate
• 13

  Nutrient replenishment in soil can be enhanced by

  回答

  (D)

  crop rotation
• 14

  What is the function of nitrosomonas bacteria in the nitrogen cycle?

  回答

  (A)

  Ammonification
• 15

  A mass of decayed plant and animal wastes processed in pits is referred to as

  回答

  (C)

  compost manure
• 16

  A major disadvantage of monoculture is that

  回答

  (C)

  diseases and pests build up
• 17

  Which of the following pairs of farming systems uses bush fallowing?

  回答

  (B)

  shifting cultivation and land rotation
• 18

  Continuous soil tillage could lead to

  回答

  (C)

  break down of soil structure
• 19

  A bag of fertilizer has a ratio of 10:0 written on it. This means that the fertilizer is a

  回答

  (C)

  phosphate fertilizer
• 20

  Theobroma cacao grows best in the

  回答

  (B)

  humid rain forest zone
• 21

  The following plants are forage grasses except

  回答

  (D)

  Calopogonium mucunoides
• 22

  Which of the following statements about budding is not true? The resulting crops

  回答

  (A)

  can withstand adverse climatic conditions
• 23

  A farm produce which does not require fermentation during processing is

  回答

  (D)

  rice grains
• 24

  The offspring which will result from a cross between heterozygous and homozygous dominant plants will be

  回答

  (C)

  50%heterozygous
• 25

  Calculate the amount of maize seeds required by a farmer to cultivate 5 hectares of farmland at the recommended seed rate of 25kg/hectare

  回答

  (D)

  125kg
• 26

  Causal organismss of diseases in crop production do not include

  回答

  (D)

  protozoa
• 27

  An example of fungal disease of stored grain is

  回答

  (A)

  mould
• 28

  Cultural control of crop diseases involves the following practices except

  回答

  (C)

  using insecticides
• 29

  Weeds which produce large hollow seeds would most likely be dispersed by

  回答

  (A)

  wind
• 30

  Control of maize stem borer is most effective when

  回答

  (A)

  affected crops are uprooted and burnt
• 31

  The average gestation period in rabbits is

  回答

  (C)

  31 days
• 32

  Control of maize stem borer is most effective when

  回答

  (A)

  affected crops are uprooted and burnt
• 33

  The correct sequence of the passage of feed through the digestive system of a ruminant is

  回答

  (D)

  rumen → reticulum → omasum → abomasum
• 34

  Control average gestation period in rabbits is

  回答

  (C)

  31 days
• 35

  The main objective of flushing in animal production is to

  回答

  (C)

  promote multiple births
• 36

  Pigs wallow in muddy pools of water primarily to

  回答

  (D)

  lower their body temperature
• 37

  Fowls is are debeaked in order to

  回答

  (C)

  reduce cannibatlism
• 38

  The common name for Andropogon gayanus is

  回答

  (B)

  Northern gamba grass
• 39

  A footbath on a poultry farm contains

  回答

  (B)

  antiseptics
• 40

  The following symptoms were observed in a bull: l watery discharged from eyes and nostrils: II Sore in the mouth and nostrils; III excessive saliva with offensive odour; IV sever diarrhoea with blood stand farces.What disease is the bull suffering from?

  回答

  (A)

  foot and mouth
• 41

  The following symptoms were observed in a bull: l watery discharged from eyes and nostrils: II Sore in the mouth and nostrils; III excessive saliva with offensive odour; IV sever diarrhoea with blood stand farces.Which of the following measures would best control the disease?

  回答

  (B)

  Vaccinating animals
• 42

  Which of the following factors affect the supply of agricultural produce? I Improvement in technology II Increase in rainfall III Decrease in temperature IV input cost

  回答

  (D)

  l, ll, lll and lV
• 43

  In agricultural production, farm gate price is mostly enjoyed by

  回答

  (A)

  middlemen
• 44

  Dissemination of new ideas by agricultural extension workers can be effective if they

  回答

  (A)

  work with existing local
• 45

  Which of the following pairs are mass methods of extension?

  回答

  (C)

  Home visits and demonstrations