2022 JAMB Agricultural Science Past Questions and Answers

Questions

1. 1.

   Which branch of ecology deals with the study of an individual organism and its interaction with the environment is

   1. A.embryology
   2. B.symbiosis
   3. C.entomology
   4. D.autecology

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   Answer: D. autecology

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2. 2.

   ____________ is said to occur when a ration does not provide all the food nutrients in adequate quantities needed by animal.

   1. A.Malnutrient
   2. B.Malnutritional
   3. C.Malnourish
   4. D.Malnutrition

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   Answer: D. Malnutrition

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3. 3.

   One of the followings is not a basic consideration in planting operations

   1. A.Planting space
   2. B.Planting time
   3. C.Planting depth
   4. D.Planting weed

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   Answer: D. Planting weed

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4. 4.

   There are________ Steps or stages of Diffusion process

   1. A.Two
   2. B.Three
   3. C.Four
   4. D.Five

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   Answer: D. Five

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5. 5.

   __________ is a pictorial presentation meant to educate or inform the literate audience

   1. A.Bulletin
   2. B.Paper
   3. C.News
   4. D.Poster

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   Answer: D. Poster

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6. 6.

   The following conditions are necessary for germination except

   1. A.adequate moisture
   2. B.viable seed
   3. C.zero temperature
   4. D.optimum temperature

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   Answer: C. zero temperature

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7. 7.

   _________ is the sowing of seed by drilling with stick or knife, followed by dropping seeds and covering them

   1. A.Broadcasting
   2. B.Dibbling
   3. C.Dribbling
   4. D.Drilling

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   Answer: B. Dibbling

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8. 8.

   ________ is a disease condition which emanates from inadequate nutrition.

   1. A.Nutritional deficiency
   2. B.Nutritional adequacy
   3. C.Nutritional efficiency
   4. D.Nutritional sufficiency

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   Answer: A. Nutritional deficiency

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9. 9.

   One of the followings is not a type of pond

   1. A.Metallic pond
   2. B.Earthen pond
   3. C.Concrete pond
   4. D.Plastic pond

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   Answer: A. Metallic pond

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10. 10.

    Broadcast Crop Planter is designed

    1. A.to plant seeds along the rows in a ridge.
    2. B.to place the correct number of seed(s) into a hole with regular spacing within and between rows
    3. C.to plant seeds by random scattering of seeds about the field.
    4. D.to place the correct number of seeds into the soil

    Show answer

    Answer: C. to plant seeds by random scattering of seeds about the field.

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11. 11.

    The following are solutions to poor transportation network experienced by farmers except

    1. A.Construction of new roads to open up the rural areas
    2. B.Provision of motor vehicles, boats and trains to facilitate distribution of farm products.
    3. C.Reduction in transportation cost to make such affordable to rural farmers.
    4. D.Presence of bad roads

    Show answer

    Answer: D. Presence of bad roads

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12. 12.

    Preservation of fish prevents the following except

    1. A.Injury
    2. B.Spoilage
    3. C.Destruction
    4. D.Processing

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    Answer: D. Processing

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13. 13.

    Roles of an extension agent includes the following except

    1. A.He does not liaises with other agencies
    2. B.He plans and executes farming educational programmes
    3. C.He supervises the utilization of agricultural loans
    4. D.He conducts or organizes training for farmers

    Show answer

    Answer: A. He does not liaises with other agencies

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14. 14.

    The feed that is regularly offered to or consumed by the animal is called

    1. A.Ratio
    2. B.Ration
    3. C.Nutrient
    4. D.Content

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    Answer: B. Ration

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15. 15.

    Television, radio, posters, bulletin are ____ method of extension

    1. A.group
    2. B.single
    3. C.mass media
    4. D.individual

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    Answer: C. mass media

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16. 16.

    The botanical name of maize is

    1. A.Corn seed
    2. B.Zea mays
    3. C.Rattus rattus
    4. D.Discorea spp

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    Answer: B. Zea mays

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17. 17.

    Cultural practices can be classified into the following except

    1. A.pre-planting operations
    2. B.planting operations
    3. C.post-planting operations
    4. D.in-planting operations

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    Answer: D. in-planting operations

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18. 18.

    Primary tillage is also known as

    1. A.Ploughing
    2. B.Harrowing
    3. C.Stumping
    4. D.Ridging

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    Answer: A. Ploughing

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19. 19.

    Which of the following is a disadvantages of mass method

    1. A.It is very expensive to operate
    2. B.It is not time consuming
    3. C.Larger audience can be reached
    4. D.Does not necessarily require the presence of an agent

    Show answer

    Answer: A. It is very expensive to operate

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20. 20.

    The mating of unrelated individual animals within the same breed is called

    1. A.Out breeding
    2. B.In - breeding
    3. C.Line breeding
    4. D.Cross breeding

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    Answer: A. Out breeding

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21. 21.

    ________ are less quick to accepting innovations which might be largely due to some of the aforementioned factors

    1. A.Never adopters
    2. B.Late adopters
    3. C.Early adopters
    4. D.Innovators

    Show answer

    Answer: B. Late adopters

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22. 22.

    Which of the following is not a role of science and technology in agricultural development in Nigeria?

    1. A.Production of chemical fertilizers
    2. B.Pest and diseases control
    3. C.Harvesting, processing and packaging
    4. D.Poor transportation network

    Show answer

    Answer: D. Poor transportation network

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23. 23.

    __________ is a special place prepared for raising seedlings which are later taken to the field for proper planting.

    1. A.Nursery
    2. B.Seed space
    3. C.Primary
    4. D.Secondary

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    Answer: A. Nursery

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24. 24.

    _______ refers to the appearance of a seedling above soil level.

    1. A.Emergence
    2. B.Epicot
    3. C.Imergence
    4. D.Emergency

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    Answer: A. Emergence

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25. 25.

    The following are types of planters except

    1. A.Broadcast crop planter
    2. B.Row crop planter
    3. C.Grain drill planter
    4. D.Ridger planter

    Show answer

    Answer: D. Ridger planter

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26. 26.

    The following problems are encountered by an agricultural extension agent except

    1. A.Language barriers
    2. B.Uncoordinated efforts by government agencies
    3. C.High level of literacy among farmers
    4. D.High level of illiteracy among farmers

    Show answer

    Answer: C. High level of literacy among farmers

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27. 27.

    The process whereby the embryo of a seed resumes growth under favourable conditions is called

    1. A.Plant growth
    2. B.Germination
    3. C.Outgrowth
    4. D.Ingrowth

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    Answer: B. Germination

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28. 28.

    The B-Horizon of soil profile is also called the

    1. A.Top soil
    2. B.Sub-soil
    3. C.Parent materials
    4. D.Bedrock

    Show answer

    Answer: B. Sub-soil

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29. 29.

    Agricultural extension serves as ____ between research institute and farmers

    1. A.command centers
    2. B.bridge
    3. C.extension
    4. D.gap

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    Answer: B. bridge

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30. 30.

    The following are post planting operations except

    1. A.Thinning
    2. B.Supplying
    3. C.Mulching
    4. D.Ridging

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    Answer: D. Ridging

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31. 31.

    _______ is a secondary tillage implement

    1. A.Harrow
    2. B.Plough
    3. C.Ridger
    4. D.Disc plough

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    Answer: A. Harrow

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32. 32.

    Fishing methods involves the use of the following different techniques or equipments except

    1. A.Netting
    2. B.Trapping
    3. C.Hooks and Lines
    4. D.Poisoning

    Show answer

    Answer: D. Poisoning

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33. 33.

    The principles of agricultural extension includes the following except

    1. A.Gain confidence of your audience
    2. B.Programmes must undergo continuous evaluation
    3. C.Programmes should be flexible
    4. D.Reduce the confidence of your audience

    Show answer

    Answer: D. Reduce the confidence of your audience

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34. 34.

    Some seeds are raised in the nursery because

    1. A.The seedlings are weak
    2. B.The seedling are green
    3. C.The seedlings love the nursery
    4. D.So that they can get enough sunshine

    Show answer

    Answer: A. The seedlings are weak

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35. 35.

    ______ introduce new ideas of farming seen in other places to their dwelling.

    1. A.Innovators
    2. B.Early adopters
    3. C.Late adopters
    4. D.Never adopters

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    Answer: A. Innovators

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36. 36.

    The following animals are polygastric animals except

    1. A.Pigs
    2. B.Cattle
    3. C.Deer
    4. D.Sheep

    Show answer

    Answer: A. Pigs

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37. 37.

    The following problems are usually associated with subsistence agriculture except

    1. A.Family labour supply is unreliable
    2. B.Simple tools are used
    3. C.It requires a large area of land
    4. D.No surplus for sale

    Show answer

    Answer: C. It requires a large area of land

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38. 38.

    Which of the following classes of nutrient is used only for energy production in farm animals?

    1. A.Protein
    2. B.Minerals
    3. C.Fat and oil
    4. D.Carbohydrates

    Show answer

    Answer: D. Carbohydrates

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39. 39.

    Bulldozers are powerful tractors and expensive machines with a

    1. A.broad steel blade
    2. B.narrow steel blade
    3. C.tiny steel blade
    4. D.small steel blade

    Show answer

    Answer: A. broad steel blade

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40. 40.

    Which of the following methods of storage is used for grains

    1. A.Barns
    2. B.Cribs
    3. C.Silos
    4. D.Refrigerators

    Show answer

    Answer: C. Silos

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41. 41.

    Which of the following processes is not used in rice processing

    1. A.Threshing
    2. B.Winnowing
    3. C.Perboiling
    4. D.Fermentation

    Show answer

    Answer: D. Fermentation

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42. 42.

    The following are categories of farmers based on adoption of innovation except

    1. A.Innovators
    2. B.Early adopters
    3. C.Late adopters
    4. D.Never innovators

    Show answer

    Answer: D. Never innovators

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43. 43.

    Which of the following is not a pre-planting operations?

    1. A.land clearing
    2. B.Stumping
    3. C.Thinning
    4. D.Farm layout

    Show answer

    Answer: C. Thinning

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44. 44.

    __________is used to create awareness and interest in the new ideas and techniques among the majority of the people

    1. A.mass media method
    2. B.Individual method
    3. C.Group method
    4. D.Many method

    Show answer

    Answer: A. mass media method

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45. 45.

    Bulldozer is used for the following purpose except

    1. A.bush clearing
    2. B.felling trees and stumps
    3. C.leveling the ground
    4. D.planting of trees

    Show answer

    Answer: D. planting of trees

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46. 46.

    __________ is the distance of the sown seed in the soil from the soil surface

    1. A.Planting height
    2. B.Planting depth
    3. C.Planting width
    4. D.Plant deep

    Show answer

    Answer: B. Planting depth

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47. 47.

    The following steps are necessary when establishing a fish pond except

    1. A.Moisture
    2. B.Site selection
    3. C.General survey
    4. D.Clearing and stumping of site

    Show answer

    Answer: A. Moisture

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48. 48.

    A person who is involved in the dissemination of new ideas and techniques from the research institutes to the farmers is called

    1. A.Biological Extension Officer
    2. B.Geographical Extension Officer
    3. C.Agent
    4. D.Agricultural Extension Officer

    Show answer

    Answer: D. Agricultural Extension Officer

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49. 49.

    ________ is all written ideas and innovation for literate to read, understand and apply.

    1. A.A bulletin
    2. B.A television
    3. C.A poster
    4. D.A radio

    Show answer

    Answer: A. A bulletin

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50. 50.

    Which of the following is a powerful and expensive multipurpose motor vehicle used for lifting or pulling farm implements?

    1. A.Bulldozer
    2. B.Tractor
    3. C.Sheller
    4. D.Incubator

    Show answer

    Answer: B. Tractor

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51. 51.

    _________ is concerned with the study of the inter-relationships between groups of organisms living together in an area

    1. A.Autecology
    2. B.Synecology
    3. C.Ecosystem
    4. D.Ecology

    Show answer

    Answer: B. Synecology

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52. 52.

    ___________ is the process which assist farmers through educational procedures in improving farming methods

    1. A.Agricultural intension
    2. B.Agricultural extension
    3. C.Agricultural education
    4. D.Agricultural technology

    Show answer

    Answer: B. Agricultural extension

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53. 53.

    Which of the following is not an organic manure?

    1. A.Green manure
    2. B.Farmyard manure
    3. C.Compost
    4. D.Fertilizer

    Show answer

    Answer: D. Fertilizer

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54. 54.

    In ponds, fish is usually caught with the following except

    1. A.Pollution
    2. B.Hook and line
    3. C.Fish trap
    4. D.Cast net

    Show answer

    Answer: A. Pollution

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55. 55.

    The following are advantages of using disc plough over mouldboard plough in West Africa except

    1. A.Disc plough makes deeper cuts than mouldboard plough
    2. B.Disc plough buries weeds more completely than mouldboard plough
    3. C.The disc plough is designed to roll over stumps and obstacles which may easily damage the edges of mouldboard plough
    4. D.Mouldboard plough makes deeper cuts than disc plough

    Show answer

    Answer: B. Disc plough buries weeds more completely than mouldboard plough

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56. 56.

    The followings are functions of a sprayer except

    1. A.It can be used to control the growth of weeds
    2. B.It can be used to control the effects of pest.
    3. C.It can be used to plant seeds
    4. D.It can be used to spray disinfectant.

    Show answer

    Answer: C. It can be used to plant seeds

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57. 57.

    Which of the following is not a type of harvester?

    1. A.Plough
    2. B.Mower
    3. C.Forage Harvester
    4. D.Combine Harvester

    Show answer

    Answer: A. Plough

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58. 58.

    The following are examples of agricultural extension except

    1. A.Agro-service centres
    2. B.Operation feed the nation
    3. C.Green revolution programme
    4. D.red revolution programme

    Show answer

    Answer: D. red revolution programme

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59. 59.

    Which of the followings is not an abiotic components of an ecosystem?

    1. A.Temperature
    2. B.Oxygen
    3. C.Topography
    4. D.Micro-organisms

    Show answer

    Answer: D. Micro-organisms

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60. 60.

    The quantity of ration that can supply the requirement nutrients above the maintenance to enable the animal produce the form of animal product for which the livestock is kept is known as

    1. A.balanced ration
    2. B.measured ration
    3. C.production ration
    4. D.maintenance ration

    Show answer

    Answer: C. production ration

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61. 61.

    ___________ is a process of spreading new ideas and information from research station to reach farm families

    1. A.Osmosis
    2. B.Diffusion
    3. C.Turgidity
    4. D.Flaccidity

    Show answer

    Answer: B. Diffusion

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62. 62.

    Which of these operations comes first in cultural practice?

    1. A.Tillage
    2. B.Ridges
    3. C.Stumping
    4. D.Harvesting

    Show answer

    Answer: C. Stumping

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63. 63.

    Which of the followings is not an advantage of Introduction

    1. A.It enhances greater productivity
    2. B.It leads to the absence of pests and diseases
    3. C.It may not perform maximally
    4. D.Breeds may perform better in terms of quality and quantity

    Show answer

    Answer: C. It may not perform maximally

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64. 64.

    The vertical section of the soil showing series of horizontal layers of different types of soil is called

    1. A.Soil texture
    2. B.Soil layers
    3. C.Soil profile
    4. D.Soil type

    Show answer

    Answer: C. Soil profile

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65. 65.

    _________ is the artificial watering of farmland

    1. A.Application
    2. B.Supplying
    3. C.Manuring
    4. D.Irrigation

    Show answer

    Answer: D. Irrigation

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66. 66.

    The major factors affecting the application of science and technology to Nigeria agriculture include the following except

    1. A.Unavailability of fund
    2. B.Unavailability of farmland
    3. C.Unwillingness of farmer to adopt scientific method
    4. D.Availability of fund

    Show answer

    Answer: D. Availability of fund

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67. 67.

    Legumes that produce edible seeds are known as

    1. A.pulses
    2. B.grains
    3. C.cereals
    4. D.beverages

    Show answer

    Answer: A. pulses

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68. 68.

    This is the removal of unwanted plants on the farm

    1. A.Weeding
    2. B.Thinning
    3. C.Mulching
    4. D.Supplying

    Show answer

    Answer: A. Weeding

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69. 69.

    Climatic factors which affects organisms include the following except

    1. A.Air
    2. B.Sunlight
    3. C.Rain
    4. D.Rocks

    Show answer

    Answer: D. Rocks

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70. 70.

    Water yam is also known as

    1. A.Dioscorea alata
    2. B.Dioscorea cayenesis
    3. C.Dioscorea rotundata
    4. D.Dioscorea bulbifera

    Show answer

    Answer: A. Dioscorea alata

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71. 71.

    ___________ consists of living factors(plants and animals) interacting with the non-living factors in a farm environment

    1. A.Ecosystem
    2. B.Ecology
    3. C.Surroundings
    4. D.Community

    Show answer

    Answer: A. Ecosystem

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72. 72.

    The following are extension methods except

    1. A.mass media method
    2. B.group method
    3. C.individual method
    4. D.none of the above

    Show answer

    Answer: D. none of the above

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73. 73.

    The animal dungs are used as_____to improve the soil fertility

    1. A.inorganic manure
    2. B.organic manure
    3. C.content
    4. D.mulch

    Show answer

    Answer: B. organic manure

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74. 74.

    Which of the following is not a component of an incubator ?

    1. A.electric heater
    2. B.temperature
    3. C.thermostat
    4. D.Insulator

    Show answer

    Answer: B. temperature

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75. 75.

    Which of the following type of rations will supplies the animal with just the quantity of nutrients that are enough to enable the animal carry on with vital body activities without losing or gaining another substance

    1. A.maintenance ration
    2. B.production ration
    3. C.balanced ration
    4. D.measured ration

    Show answer

    Answer: A. maintenance ration

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76. 76.

    The removal of excess seedlings from a seedbed after the viable seeds have germinated is

    1. A.Supplying
    2. B.Thinning
    3. C.Weeding
    4. D.Mulching

    Show answer

    Answer: B. Thinning

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77. 77.

    One of the followings is not an objective of agricultural extension

    1. A.To educate farmers
    2. B.To help improve the standard of living of rural dwellers
    3. C.To abandon the development of rural area
    4. D.To help identify proper market channel

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    Answer: C. To abandon the development of rural area

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78. 78.

    The young plants that emerge during germination are called

    1. A.Emmergent plants
    2. B.Surface plants
    3. C.Seedlings
    4. D.Leaves

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    Answer: C. Seedlings

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79. 79.

    The A-Horizon of soil profile is also called the

    1. A.Top soil
    2. B.Sub-soil
    3. C.Parent materials
    4. D.Bedrock

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    Answer: A. Top soil

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80. 80.

    Which of these is not an example of tractor coupled implement?

    1. A.Harrow
    2. B.Incubator
    3. C.Ridger
    4. D.Plough

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    Answer: B. Incubator

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