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1. Commercial agriculture is characterized by

A. use of machines
B. small farm holdings
C. low capital investment
D. little research activity

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

A. mortgage
B. communal ownership
C. leasehold
D. inheritance

3. The agricultural sector in West Africa is plagued with poverty because

A. farmers belong to cooperative societies
B. yields obtained per annum are relatively low
C. farmers have access to credit facilities
D. the weather is highly predictable

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

A. transport seeds from the metering device to the furrow opener
B. control the rate of placement of seeds in the soil
C. cover seeds placed in the soil
D. open the soil for seed placement

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

A. mill
B. decorticator
C. winnower
D. sheller

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

A. dibber
B. hoe
C. hand trowel
D. hand fork

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

A. prevent rusting
B. sharpen the discs
C. reduce friction
D. reduce the lifespan

8. Wind can be beneficial to crop production because it

A. aids weed seeds dispersal
B. aids pollination of crops
C. causes lodging of crops
D. causes rapid drying of wet soils

9. The method of surface irrigation widely used in rice fields is

A. basin irrigation
B. wild flooding
C. furrow irrigation
D. border strip

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

A. rotational grazing
B. monoculture
C. crop rotation
D. mixed farming

11. Which of the following is not an effect of over-grazing on soil?

A. Improvement of soil structure
B. soil compaction
C. exposure of soil to erosion
D. depletion of soil nutrients

12. The major factor affecting distribution of crops in West Africa is

A. climate
B. soil
C. topography
D. disease

13. Nutrient replenishment in soil can be enhanced by

A. crop removal
B. leaching
C. erosion
D. crop rotation

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

A. Ammonification
B. Nitrification
C. Denitrification
D. Nitrogen fixation

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

A. green manure
B. farmyard manure
C. compost manure
D. inorganic manure

16. A major disadvantage of monoculture is that

A. soil texture is destroyed
B. soil microbes are destroyed
C. diseases and pests build up
D. farms cannot be mechanized

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

A. crop rotation and land rotation
B. shifting cultivation and land rotation
C. land rotation and mixed farming
D. crop rotation and monoculture

18. Continuous soil tillage could lead to

A. increased infiltration of water
B. reduced run-off
C. break down of soil structure
D. improved soil texture

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

A. lime fertilizer
B. nitrogenous fertilizer
C. phosphate fertilizer
D. potassium fertilizer

20. Theobroma cacao grows best in the

A. sudan savannah zone
B. humid rain forest zone
C. mangrove swamp forest zone
D. northern guinea savannah zone

21. The following plants are forage grasses except

A. Pennisetun purpureum
B. Panicum maximum
C. Axonopus compressus
D. Calopogonium mucunoides

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

A. can withstand adverse climatic conditions
B. flower and bear fruit early
C. develop broader leaves for photosynthesis
D. are more disease resistant

23. A farm produce which does not require fermentation during processing is

A. cocoa beans
B. coffee beans
C. cassava tubers
D. rice grains

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

A. 100% heterozygous
B. 70% heterozygous
C. 50% heterozygous
D. 20% 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

A. 50kg
B. 75kg
C. 100kg
D. 125kg

26. Causal organismss of diseases in crop production do not include

A. viruses
B. bacteria
C. fungi
D. protozoa

27. An example of fungal disease of stored grain is

A. mould
B. streak
C. mosaic
D. damping off

28. Cultural control of crop diseases involves the following practices except

A. practising crop rotation
B. planting disease resistant varieties
C. using insecticides
D. fallowing of farmland

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

A. wind
B. water
C. insect
D. explosion

30. Control of maize stem borer is most effective when

A. affected crops are uprooted and burnt
B. rodenticides are applied
C. nematicides are applied
D. fertilizers are applied before planting

31. The average gestation period in rabbits is

A. 21 days
B. 26 days
C. 31 days
D. 36 days

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

A. reticulum → omasum → abomasum → rumen
B. rumen → omasum → abomasum → reticulum
C. omasum → abomasum → rumen → reticulum
D. rumen → reticulum → omasum → abomasum

33. The main objective of flushing in animal production is to

A. promote muscle development
B. make parturition easier
C. promote multiple births
D. make the animal lose weight

34. Pigs wallow in muddy pools of water primarily to

A. ensure adequate exercise
B. obtain forage materials
C. dislodge ectoparasite from their body
D. lower their body temperature

35. Fowls is are debeaked in order to

A. reduce feed intake
B. make them grow faster
C. reduce cannibalism
D. vitamin A

36. A chicken that pecks at palm fruits could prevent a deficiency of

A. vitamin K.
B. vitamin E.
C. vitamin B.
D. vitamin A

37. The common name for Andropogon gayanus is

A. Elephant grass
B. Northern gamba grass
C. Guinea grass
D. Giant star gass

38. A footbath on a poultry farm contains

A. herbicides
B. antiseptics
C. antibiotics
D. disinfectants

39. Ectoparasites of cattle do not include

A. fleas and mites
B. ticks and mites
C. lice and termites
D. fleas and ticks

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.

40. What disease is the bull suffering from?

A. foot and mouth
B. brucellosis
C. tuberculosis
D. rinderpest

41. Which of the following measures would best control the disease?

A. Deworming animals
B. Vaccinating animals
C. Treating animals with antibiotics
D. Dipping 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

A. I and II only
B. I and III only
C. I, II and III only
D. I, II, III and IV

43. In agricultural production, farm gate price is mostly enjoyed by

A. middlemen
B. producers
C. commodity boards
D. cooperative societies

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

A. work with existing local
B. supply farmers with needed inputs
C. give financial support to farmers
D. are politically active

45. Which of the following pairs are mass methods of extension?

A. Telephone calls and informal contacts
B. Letters and newspapers
C. Home visits and demonstrations
D. Radio and posters

46. Calculate the annual depreciation of a farm machinery with a total depreciation of D63,000 and a useful life of 5 years

A. D6,300.00
B. D9,450.00
C. D12, 600.00
D. Radio and posters

47. In hook and line fishing, the bait is fixed onto the

A. float
B. hook
C. line
D. pole

48. Water in a fish pond is made suitable for fish by

A. fertilization
B. liming
C. manuring
D. silting

49. Forest regulations are formulated in order to encourage

A. deforestation
B. afforestation
C. bush burning
D. taungya farming

50. Ornamental crops are used for the following purposes except

A. landscaping
B. interior decoration
C. as symbols of love
D. as fodder