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THEORY QUESTIONS

WAEC SYLLABUS

1. Which of the following agricultural raw materials would a glue processing industry require?

A. Cotton

B. Coconut

C. Cassava

D. Kola

2. Perishability of farm produce can be minimized through

A. modification of the crop genetic composition

B. adoption of continuous cropping system

C. reducing water supply to growing crops

D. use of machines to harvest crops

3. In which of the following activities is land not used for agricultural purposes?

A. Afforestation

B. Mining

C. Ranching

D. Fish farming

4. Which of the following statements about farm settlement schemes is false? They are set up

A. to encourage young people to take up farming

B. to provide employment for young school leavers

C. to develop rural infrastructure

D. for research and publicity

5. Water-logged soils impede good crop growth and development because

A. the fibrous roots are destroyed

B. crop roots are deprived of sufficient oxygen

C. excessive water stops root growth

D. soil around roots become too old for root growth

ANSWERS

6. The relative proportion of each fraction of soil in a soil sample determines its

A. texture

B. structure

C. profile

D. catena

7. Which of the following materials cannot be used for liming?

A. Gypsum

B. Basic slag

C. Chalk

D. Urea

8. Which of the following statements about soil water is true?

A. Crops wilt when gravitational water has drained off

B. Capillary water drains off after rain fall

C. A soil with high water table is best for farming

D. Crops utilizes capillary water in the soil

9. Which of the following elements becomes readily available at pH values above 8?

A. Molybdenum

B. Manganese

C. Zinc

D. Aluminium

10. Micro- nutrients are likely to be deficient in

A. cleared virgin forest soils

B. soils with high organic matter

C. fine textured soils

D. soils with low pH

ANSWERS

11. Chlorosis with characteristic parallel white or yellow streaks observed along the veins of leaves is a deficiency symptom of

A. potassium

B. magnesium

C. phosphorus

D. sulphur

Use the information below to answer question 12 and 13

I. Allowing land to fallow II. Applying organic fertilizer III. Practicing monoculture IV. Growing legumes

12. Which of the following combinations will help to improve soil fertility status?

A. I, III and IV only

B. II, III and IV only

C. I, II and III only

D. I, II and IV only.

13. The spread of diseases and pests can be checked by

A. I

B. II

C. III

D. IV

14. Which of the following statements is not an advantage of drainage? It

A. removes excess water

B. supplies moisture for plant growth

C. reclaims water-logged land and swamps

D. improves soil structure

15. The problems associated with farm irrigation do not include

A. high cost of irrigation equipment

B. increase in soil pH

C. continuous supply of irrigation water

D. build up of pests on the farm

Use the information below to answer questions 16 and 17.

I. Burning of trash II. Slashing of undergrowth III. Seed bed preparation IV. Soil tillage

ANSWERS

16. Which of the following options gives the correct sequence for land preparation for yam planting?

A. IV,II,III and I

B. II,I IV and III

C. II,III,I and IV

D. I,II III and IV

17. Which of the following practices will enhance loss of soil water?

A. I and II

B. II and III

C. III and IV

D. I and IV

18. The most versatile source of farm power in West Africa is

A. biogas

B. animal

C. wind

D. water

19. Silos ensure good storage because

A. they are made of stainless steel

B. of the air-tight environment created

C. a lot of produce can be stored at a time

D. they have high relative humidity

20. Which of the following statements about the advantages of farm mechanization is not true? It

A. saves labour

B. improves soil structure

C. reduces drudgery

D. increases output

ANSWERS

21. The standard length of a Gunter’s chain is approximately

A. 20m

B. 25m

C. 35m

D. 40m

22. A farmstead is best described as

A. animal pens

B. crop production centre

C. farm equipment and storage facilities

23. Which of the following processes in plants are directly affected by high temperature? I. Water absorption II. Photosynthesis III. Respiration IV. Photoperiodism

A. I and II only

B. I, II and III only

C. I and IV only

D. II,III and IV only

24. Layering is advantageous because

A. offspring perform better than their parents

B. pollination agents abound to ensure its success

C. possible failure of fertilization is avoided

D. variability arises in propagates

25. Drying of harvested crops is necessary because it

A. shortens the length of seed dormancy

B. reduces moisture content and stores better

C. cannot be sold to consumers when it is wet

D. decreases the viability of the crops

ANSWERS

26. Which of the following factors will not influence the yield of crops?

A. soil depth and structure

B. soil slope and texture

C. atmospheric and soil temperature

D. Wind direction and speed

27. If the seed rate for guinea corn is 5.6kg per hectare, what will be the amount of seeds required for planting 35 acres of farmland?

A.40.6kg

B.78.4kg

C.196.0kg

D.784.0 kg

28. Delayed harvesting of maize may result in

A. improvement in the quantity of grains

B. high incidence of pest infestation

C. low seed viability

D. yellow colouration of grains

29. Tomato plants are primarily staked to

A. prevent birds from feeding on the fruits

B. accelerate fruits maturity

C. raise fruits from the ground

D. increase crop growth

30. Which of the following crops does not require nursery?

A. Lycopersicon escculentum

B. Abelmuscusesculentus

C. Theobroma cacao

D. Hevea braziliensis

ANSWERS

31. An erect tropical perennial grass, which grows 3-6 metres tall and has broad hairy leaves is the

A. elephant grass

B. giant star grass

C. spear grass

D. gamba grass

32. Deforestation will eventually lead to

A. improvement in soil fertility

B. improvement of soil structure

C. loss of soil organic matter

D. increase in soil pH

33. Golden brown lesions on peeled yam tuber indicate infection by

A. bacteria

B. virus

C. fungi

D. nematode

34. The eradication of mealy bugs is an effective control of

A. corn smut

B. swollen shoot of cocoa

C. groundnut rosette

D. rice blast

35. The side effects of the various preventive and control measures of pests and diseases of crops include the following except

A. improved quality of farm produce

B. environmental pollution

C. poisoning of wildlife

D. disruption of the eco system

ANSWERS

36. Biological methods of weed control do not include

A. introducing insects to control weed

B. planting crops to compete with the weed

C. planting leguminous cover crops

D. uprooting the weeds

Use the following information to answer Questions 37 and 38

Assuming that in sheep, the allele for black coat colour is dominant over that for brown coat colour

37. What percentage of the F generation will have black colour when two heterozygotes are crossed?

A. 100%

B. 75%

C. 50%

D. 25%

38. Crossing a heterozygote black with a homozygote brown will produce

A. 100% brown coat coloured offspring

B. 75% brown coat coloured offspring

C. 50% brown coat coloured offspring

D. 25% brown coat coloured offspring

The diagram below shows the alimentary canal of a monogastric animal. Use it to answer Questions 39 and 40. 43.

ANSWERS

41. Which of the following structures is not connected to the urethra of a bull?

A. Bladder

B. Epididymis

C. Testis

D. Rectum

42. Ruminants do not normally show deficiency symptoms of vitamin B complex because

A. the grasses they consume are very rich in the vitamins

B. they do not need the vitamins

C. they tolerate the deficiency of these vitamins

D. the bacteria in their rumen synthesize the vitamins

43. Fluids from the cowpers’ and prostrate glands help in the following except

A. clearing the urethra of urine traces

B. provision of nutrients for spermatozoa survival

C. mixing with spermatozoa to form sperm on ejaculation

D. maintaining the proper functioning of the testes

44. The gestation period of ewe is

A. 90 days

B.115 days

C. 131 days

D. 149 days

45. The hormone that influences the movement of the pelvic ligament in farm animals is known as

A. relaxin

B. prolactin

C. progesterone

D. oestrogen

ANSWERS

46. In order to prevent bulls form eating crops during work, they should be

A. branded

B. dehorned

C. tethered

D. muzzled

47. Ms of poultry management can the spread of diseases be kept to a minimum?

A. Battery cage

B. Deep Litter

C. Fold

D. Free range

48. A wallow is usually constructed in piggeries to

A. serve as points for providing drinking water

B. make draining of pens easier

C. provide baths for pigs

D. reduce piglet’s mortality during birth

49. Which of the following groups of macro- nutrients is a constituent of protein?

A. Nitrogen, phosphorus and sulphur

B. Calcium, magnesium and potassium

C. Magnesium, calcium and phosphorus

D. Sulphur, magnesium and potassium

50. Which of the following livestock diseases affect the reproductive system?

A. Mastitis

B. Brucellosis

C. Rinder pest

D. Anthrax

ANSWERS

51. If in a poultry flock, the birds keep passing out green, foul-smelling faeces with nervous symptoms, it shows that the farmer

A. has not administered Newcastle disease vaccine

B. neglected to treat chicks against gumboro disease

C. is giving the birds protein deficient diet

D. is feeding a diet high in calcium

52. When a famer tries to eradicate snails from his pastures, he is attempting to control

A. ticks

B. tapeworms

C. trypanosomiasis

D. liver flukes

53. Cropping in fish farming refers to

A. stocking fish

B. processing fish

C. harvesting fish

D. feeding fish

54. Fertilizing a fish pond with compost manure would most likely

A. decrease phytoplankton population and decrease fish yield

B. decrease phytoplankton population and increase fish yield

C. increase phytoplankton population and decrease fish yield

D. increase phytoplankton population and increase fish yield

Use the following information to answer Questions 55and 56 A farmer sold all his harvested maize totaling 260 kg at ₦5.50/kg thereby making a profit of ₦430.00.

55. Calculate the production cost of maize per kg

A. ₦4.05

B.₦3.85

C.₦3.75

D. ₦3.65

ANSWERS

56. Determine the percentage profit per kg of maize sold

A. 35%

B. 40%

C.43%

D.52%

57. The demand for agricultural produce is generally