Home ยป Past Questions ยป Agricultural-science ยป Waec ยป 2021 ยป Page 2
22

Which of the following statement about slatted floors in livestock housing are true? They
I.lessen labour requirements
II.reduce odour in pens
III.hamper movement of animals

  • A. I and II only
  • B. I and III only
  • C. II and III only
  • D. I,II and III
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23

The best way for a young animal to obtain colostrum is by

  • A. giving it powdered milk
  • B. providing it with warm milk
  • C. injecting it with progesterone
  • D. allowing it to suckle the dam
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24

Which of the following features is not a characteristic of a good layer

  • A. Bright red comb and wattle
  • B. Long and curved beak
  • C. Bright and bulging eyes
  • D. Broad and flexible pelvic bone
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25

The breeds of cattle resistant to trypanosomiasis are

  • A. N'dama and moturu
  • B. White fulani and biu
  • C. Red bororo and adamawa
  • D. Wadara and sokoro gudali
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26

Which of the following groups of insect pests damages crops by bitting and chewing?

  • A. cotton stainer, armyworm and cricket
  • B. cricket, mealybug, and whitefly
  • C. armyworm, termite nd grasshopper
  • D. cotton stainer, mealybug and termite
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27

The causative organism of maize rust is a 

  • A. bacterium
  • B. protozoon
  • C. virus
  • D. fungus
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28

A suitable grass for lawns is 

  • A. Andropogon gayanus
  • B. Pennisetum purpureum
  • C. Cynodon dactylon
  • D. Panicum maximum
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29

The basic importance of agriculture to a forester is to 

  • A. obtain honey
  • B. obtain food
  • C. acquire labour
  • D. procure timber
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30

The diagram below illustrates a farm operation. Study it and answer this question.
Open photo

Crops which require the illustrated farm operation are

  • A. yam and cowpea
  • B. tomato and okro
  • C. okro and pepper
  • D. tomato and yam
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31

The diagram below illustrates a farm operation. Study it and answer this question.
Open photo

Which of the following statements is not a reason for carrying out the illustrated farm operation? To

  • A. expose the leaves to sunlight
  • B. prevent damage by rodents
  • C. improve the yield of the crop
  • D. prevent lodging of the plants
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32

Elaeis guineensis and Arachis hypogaea are examples of

  • A. latex crops
  • B. oil crops
  • C. fibre crops
  • D. fruit crops
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33

Propagation of ginger is generally done using it’s

  • A. corn
  • B. rhizome
  • C. sucker
  • D. seed
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34

Two species of kola grown for commercial purposes in West Africa are

  • A. Cola acuminata and cola gigantea
  • B. Cola nitida and cola verticillata
  • C. Cola nitida and cola acuminata
  • D. Cola verticillata and cola gigantea
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35

A plot of land devoted to the cultivation of fruit  trees is called

  • A. orchard
  • B. farmstead
  • C. forest
  • D. ranch
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36

Okro seeds are sown on 0.72 hectares of farmland at a spacing of 60cm. Calculate the expected plant population 

  • A. 3,600 plants
  • B. 7,200 plants
  • C. 10,000 plants
  • D. 20,000 plants
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37

The botanical name of onion is

  • A. Zea mays
  • B. Oryza sativa
  • C. Carica papaya
  • D. Allium cepa
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38

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

  • A. remove irregular shaped tubes
  • B. control termite attack
  • C. prevent mouldiness in yam
  • D. remove sprouts and rotten tubers
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39

Drying of newly harvested grains before storage helps to increase the 

  • A. moisture content
  • B. pest incidence
  • C. seed viability
  • D. nutrient content
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40

The following factors are essential for maize production except 

  • A. high temperature
  • B. low temperature
  • C. relative humidity
  • D. adequate rainfall
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41

The phosphorus cycle is described as being sedimentary because phosphorus 

  • A. is a macroelement
  • B. is an earthbound element
  • C. is solid at room temperature
  • D. occurs in the atmosphere
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42

A farmer practices crop rotation in order to

  • A. reduce yield
  • B. improve soil texture
  • C. increase pest incidence
  • D. improve soil fertility
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