Proposed JAMB 2026 Agricultural Science 100 Questions and Answers

Proposed JAMB 2026 Agricultural Science 100 Questions and Answers

EXAMINATION INSTRUCTIONS

• Answer all questions.
• Each question carries one mark.
• Choose the correct option (A–D).
• Read each question carefully before answering.
• Time allowed: 50 minutes (practice standard).

QUESTIONS 1–50

1. Agriculture is the science of

A. Teaching
B. Farming and rearing animals
C. Mining
D. Trading

2. Crop production involves

A. Fishing
B. Growing plants
C. Mining
D. Transport

3. Animal husbandry deals with

A. Planting crops
B. Rearing animals
C. Selling goods
D. Mining

4. Subsistence farming is meant for

A. Export
B. Family consumption
C. Government
D. Industry

5. Commercial farming is done for

A. Profit
B. Family use
C. Experiment
D. Religion

6. Soil is important because it

A. Produces rain
B. Supports plant growth
C. Controls animals
D. Produces air

7. The topmost layer of soil is

A. Subsoil
B. Topsoil
C. Bedrock
D. Clay

8. Sandy soil has

A. High water retention
B. Large particles
C. High nutrients
D. Sticky texture

9. Clay soil is

A. Loose
B. Sticky
C. Dry
D. Sandy

10. Loamy soil is best for farming because

A. It is hard
B. It is balanced
C. It is dry
D. It is rocky

11. Soil fertility means

A. Soil colour
B. Ability to support plant growth
C. Soil texture
D. Soil depth

12. Organic manure includes

A. Fertilizer
B. Compost
C. Chemicals
D. Pesticides

13. Inorganic fertilizers are

A. Natural
B. Chemical
C. Organic
D. Compost

14. Crop rotation helps to

A. Destroy soil
B. Improve soil fertility
C. Reduce crops
D. Stop farming

15. Mixed farming involves

A. Crops only
B. Animals only
C. Crops and animals
D. Fishing only

Proposed JAMB 2026 Agricultural Science 100 Questions and Answers

16. Irrigation is

A. Rainfall
B. Artificial watering of crops
C. Harvesting
D. Planting

17. Weeding is done to

A. Plant crops
B. Remove unwanted plants
C. Water crops
D. Harvest

18. Pests are

A. Useful animals
B. Harmful organisms
C. Fertilizers
D. Crops

19. Herbicides are used to control

A. Insects
B. Weeds
C. Fungi
D. Rodents

20. Insecticides control

A. Weeds
B. Insects
C. Fungi
D. Bacteria

21. Farm tools include

A. Tractor
B. Cutlass
C. Hoe
D. All of the above

22. Mechanized farming uses

A. Hand tools
B. Machines
C. Animals
D. Labour only

23. A tractor is used for

A. Cooking
B. Ploughing
C. Harvesting manually
D. Fishing

24. Photosynthesis occurs in

A. Roots
B. Leaves
C. Stem
D. Soil

25. The green pigment in plants is

A. Chlorophyll
B. Nitrogen
C. Oxygen
D. Carbon

26. Livestock includes

A. Crops
B. Animals
C. Soil
D. Water

27. Poultry farming involves

A. Fish
B. Birds
C. Goats
D. Sheep

28. Cattle are reared for

A. Milk and meat
B. Eggs
C. Wool
D. Honey

29. Fish farming is called

A. Apiculture
B. Aquaculture
C. Horticulture
D. Forestry

30. Bee keeping is

A. Horticulture
B. Apiculture
C. Sericulture
D. Aquaculture

31. Forestry deals with

A. Crops
B. Trees
C. Animals
D. Soil

32. A seed germinates when it has

A. Water, air and warmth
B. Sun only
C. Soil only
D. Wind

33. Pollination is

A. Fertilization
B. Transfer of pollen
C. Planting
D. Harvesting

34. Fertilization in plants occurs when

A. Seeds are planted
B. Male and female gametes fuse
C. Water is added
D. Leaves grow

35. Harvesting is

A. Planting
B. Collecting mature crops
C. Watering
D. Fertilizing

36. Storage of crops prevents

A. Growth
B. Spoilage
C. Planting
D. Harvest

37. Agriculture provides

A. Food
B. Raw materials
C. Employment
D. All of the above

38. Extension services help farmers with

A. Loans
B. Education and advice
C. Politics
D. Transport

39. Soil erosion is caused by

A. Wind and water
B. Plants
C. Animals
D. Fertilizer

40. Terracing controls

A. Flood
B. Erosion
C. Rain
D. Wind

41. Green manure improves

A. Air
B. Soil fertility
C. Water
D. Sunlight

42. Legumes help fix

A. Oxygen
B. Nitrogen
C. Carbon
D. Hydrogen

43. Crop yield means

A. Seed
B. Output
C. Growth
D. Harvest

44. Farm records help in

A. Planning
B. Decision making
C. Evaluation
D. All of the above

45. Marketing involves

A. Selling produce
B. Planting
C. Watering
D. Harvesting

46. Agriculture contributes to

A. Economy
B. Development
C. Employment
D. All of the above

47. Climate affects

A. Crops
B. Animals
C. Farming
D. All of the above

48. Rainfall is important for

A. Plant growth
B. Soil only
C. Animals only
D. Machines

49. Temperature affects

A. Germination
B. Growth
C. Yield
D. All of the above

50. The main aim of agriculture is

A. Profit only
B. Food production
C. Trade
D. Industry

51. Soil structure refers to

A. Soil colour
B. Arrangement of soil particles
C. Soil depth
D. Soil temperature

52. Soil pH measures

A. Soil fertility
B. Acidity or alkalinity
C. Soil texture
D. Moisture

53. Acidic soils can be corrected by applying

A. Fertilizer
B. Lime
C. Herbicide
D. Water

54. Alkaline soils can be improved by

A. Lime
B. Sulphur
C. Sand
D. Water

Proposed JAMB 2026 Agricultural Science 100 Questions and Answers

55. The main nutrient required in large quantity by plants is

A. Micronutrient
B. Macronutrient
C. Trace element
D. Mineral

56. Nitrogen helps in

A. Root growth
B. Leaf development
C. Flowering
D. Fruit ripening

57. Phosphorus aids

A. Leaf growth
B. Root development
C. Stem elongation
D. Colour

58. Potassium is important for

A. Disease resistance
B. Root growth
C. Flowering only
D. Germination

59. Farm planning involves

A. Guess work
B. Organizing farm activities
C. Selling produce
D. Harvesting

60. Farm budgeting helps in

A. Spending without planning
B. Financial planning
C. Crop planting
D. Soil testing

61. Fixed capital includes

A. Seeds
B. Fertilizer
C. Land
D. Labour

62. Variable capital includes

A. Land
B. Buildings
C. Seeds
D. Machinery

63. Depreciation refers to

A. Increase in value
B. Decrease in value of assets
C. Selling assets
D. Buying assets

64. Farm records include

A. Sales records
B. Production records
C. Labour records
D. All of the above

65. Breeding in animals aims at

A. Reducing quality
B. Improving traits
C. Killing animals
D. Selling animals

66. Cross breeding involves

A. Same breed
B. Different breeds
C. Plants only
D. Animals only

67. Inbreeding is mating between

A. Unrelated animals
B. Related animals
C. Different species
D. Plants

68. Genetics deals with

A. Soil
B. Inheritance
C. Crops
D. Climate

69. A dominant trait

A. Is hidden
B. Appears in offspring
C. Disappears
D. Is weak

70. A recessive trait

A. Always shows
B. Is masked
C. Is dominant
D. Is strong

71. Animal feed provides

A. Energy
B. Growth
C. Maintenance
D. All of the above

72. Roughages are

A. Concentrated feed
B. High fibre feed
C. Minerals
D. Vitamins

73. Concentrates are

A. High fibre
B. Low nutrients
C. Rich in nutrients
D. Rough

74. Balanced diet for animals contains

A. Only protein
B. Only carbohydrates
C. All nutrients
D. Water only

75. Water is important for animals because it

A. Provides minerals only
B. Aids digestion
C. Causes disease
D. Reduces growth

76. Livestock diseases can be prevented by

A. Poor hygiene
B. Vaccination
C. Overcrowding
D. Starvation

77. Parasites that live inside animals are

A. Ectoparasites
B. Endoparasites
C. External pests
D. Insects

78. Ticks are

A. Endoparasites
B. Ectoparasites
C. Plants
D. Crops

79. Farm mechanization improves

A. Labour
B. Efficiency
C. Productivity
D. All of the above

Proposed JAMB 2026 Agricultural Science 100 Questions and Answers

80. Agricultural economics deals with

A. Farming methods
B. Financial aspects of farming
C. Soil science
D. Crops

81. Demand refers to

A. Supply of goods
B. Desire backed by ability to pay
C. Production
D. Harvest

82. Supply refers to

A. Demand
B. Availability of goods
C. Price
D. Market

83. Market is a place where

A. Crops are planted
B. Goods are exchanged
C. Animals are reared
D. Soil is tested

84. Price is determined by

A. Government only
B. Demand and supply
C. Farmers only
D. Weather

85. Storage pests include

A. Weevils
B. Rodents
C. Insects
D. All of the above

86. Preservation methods include

A. Drying
B. Smoking
C. Refrigeration
D. All of the above

87. Forestry conservation includes

A. Deforestation
B. Afforestation
C. Burning
D. Logging

88. Afforestation means

A. Cutting trees
B. Planting trees
C. Burning forest
D. Clearing land

89. Crop diseases are caused by

A. Bacteria
B. Fungi
C. Viruses
D. All of the above

90. Weed control methods include

A. Manual
B. Chemical
C. Mechanical
D. All of the above

91. Farm income is calculated as

A. Revenue only
B. Cost only
C. Revenue minus cost
D. Profit only

92. Profit is

A. Loss
B. Revenue minus expenses
C. Income only
D. Cost only

93. Agricultural extension workers

A. Sell crops
B. Educate farmers
C. Buy land
D. Harvest crops

94. Cooperative societies help farmers to

A. Work alone
B. Access loans
C. Avoid farming
D. Reduce output

95. Agricultural insurance protects against

A. Profit
B. Risk and loss
C. Growth
D. Yield

96. Climate change affects

A. Crops
B. Animals
C. Farming
D. All of the above

97. Irrigation farming is useful during

A. Rainy season
B. Dry season
C. Harvest
D. Planting

98. Post-harvest losses occur due to

A. Poor storage
B. Pests
C. Handling
D. All of the above

99. Sustainable agriculture focuses on

A. Short-term gain
B. Long-term productivity
C. Soil destruction
D. Pollution

100. The goal of agricultural science is

A. Food security
B. Poverty reduction
C. Economic growth
D. All of the above

Proposed JAMB 2026 Agricultural Science 100 Questions and Answers

ANSWER KEY (1–50)

1. B
2. B
3. B
4. B
5. A
6. B
7. B
8. B
9. B
10. B
11. B
12. B
13. B
14. B
15. C
16. B
17. B
18. B
19. B
20. B
21. D
22. B
23. B
24. B
25. A
26. B
27. B
28. A
29. B
30. B
31. B
32. A
33. B
34. B
35. B
36. B
37. D
38. B
39. A
40. B
41. B
42. B
43. B
44. D
45. A
46. D
47. D
48. A
49. D
50. B
51. B
52. B
53. B
54. B
55. B
56. B
57. B
58. A
59. B
60. B
61. C
62. C
63. B
64. D
65. B
66. B
67. B
68. B
69. B
70. B
71. D
72. B
73. C
74. C
75. B
76. B
77. B
78. B
79. D
80. B
81. B
82. B
83. B
84. B
85. D
86. D
87. B
88. B
89. D
90. D
91. C
92. B
93. B
94. B
95. B
96. D
97. B
98. D
99. B
100. D