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Agriculture 100 MCQs
1. What law states that adding more of one input will eventually yield lower marginal returns?
2. What is the process of moving agricultural products from farm to consumer?
3. What is the total cost incurred in producing a good or service?
4. What is the exchange of goods and services between countries?
5. What is the ability to produce more of a good with the same resources?
6. What organization promotes free trade and resolves trade disputes?
7. What UN agency leads international efforts to defeat hunger?
8. What is the state of having reliable access to sufficient, safe, and nutritious food?
9. What measures income inequality?
10. What measures life expectancy, education, and income?
11. What is a farming method that uses synthetic chemicals and fertilizers to maximize yields?
12. What is the practice of growing two or more crops simultaneously on the same land?
13. What is the mechanical preparation of soil for planting?
14. What is the application of nutrients to soil to enhance crop growth?
15. What is the process of separating grain from the chaff?
16. What is the process of separating chaff from grain using air?
17. What is the time when seeds are planted in the field?
18. What is the amount of seed required per unit area?
19. What is the distance between plants or rows?
20. What is the practice of covering soil to conserve moisture and control weeds?
21. What is the use of natural enemies to control pests?
22. What is the use of physical barriers or traps to control pests?
23. What does crop physiology study?
24. What is the process by which plants break down glucose to release energy?
25. What is the loss of water vapor from plant leaves?
26. What control the opening and closing of stomata?
27. What plants flower when the day length is longer than a critical period?
28. What is the exposure of plants to cold temperatures to induce flowering?
29. What is a period of reduced metabolic activity in plants?
30. What is the process by which a seed begins to grow and develop?
31. What plant hormone promotes fruit ripening and abscission?
32. What tissue transports assimilates from sources to sinks?
33. What is the pressure exerted by the cell contents against the cell wall?
34. What arthropods have three body segments: head, thorax, and abdomen?
35. What part of an insect contains the digestive, reproductive, and respiratory organs?
36. What is the process of development from egg to adult in insects?
37. What order includes butterflies and moths?
38. What order includes true bugs, aphids, and leafhoppers?
39. What insects transfer pollen between flowers, enabling plant reproduction?
40. What is the use of natural enemies to control pests?
41. What chemicals are used to control insect pests?
42. What is the pest population level at which control measures should be taken to prevent economic loss?
43. What does the insect life cycle include?
44. What branch of horticulture deals with flower cultivation?
45. What propagation method involves removing a plant part and planting it to grow a new plant?
46. What is a place where young plants are grown before being transplanted?
47. What is a field where fruit trees are grown?
48. What is the process of collecting mature crops from the field?
49. What type of propagation involves the use of vegetative parts such as cuttings, grafts, and bulbs?
50. What is the fusion of male and female gametes in plants?
51. What develops from the ovary after fertilization?
52. What is the application of water to the soil surface using gravity flow?
53. What is the application of water directly to the root zone through emitters?
54. What is the ratio of water stored in the root zone to water applied?
55. What is an underground layer of water-bearing rock?
56. What is the control of salt accumulation in soil and water?
57. What is the saturation of soil with water, reducing oxygen availability to roots?
58. What is the collection of rainwater from surfaces such as roofs or catchments?
59. What is the accounting of all water inputs and outputs in a system?
60. What is the planning of when and how much water to apply?
61. What is the lack of sufficient water resources to meet demands?
62. What is the process of choosing plants with desirable traits for breeding?
63. What involves inducing mutations to create new traits in plants?
64. What is the direct manipulation of an organism's genes using biotechnology?
65. What is the crossing of closely related individuals?
66. What is the fertilization of a plant by its own pollen?
67. What is the genetic makeup of an organism?
68. What is the use of molecular markers to select plants with desirable traits?
69. What breeding method tracks the ancestry of selected plants?
70. What breeding method selects plants based on their appearance?
71. What is the proportion of phenotypic variation that is due to genetic factors?
72. What are organisms that cause diseases?
73. What major group of plant pathogens causes rusts, mildews, and blights?
74. What submicroscopic pathogens cause diseases like mosaic and yellowing?
75. What consists of a susceptible host, a virulent pathogen, and favorable environmental conditions?
76. What describes the sequence of events in the development of a plant disease?
77. What is the pathogen propagules that cause infection?
78. What is a disease symptom characterized by mottled yellow and green patterns on leaves?
79. What are plants that are less susceptible to diseases?
80. What is the prevention of the introduction of a disease into a region?
81. What is a holistic approach combining biological, cultural, chemical, and genetic methods?
82. What is the process by which a seed begins to grow and develop?
83. What is a period of inactivity in a seed that prevents germination?
84. What is the potential of a seed to produce a healthy and vigorous seedling?
85. What is the absence of pathogens and pests in seeds?
86. What is the process of evaluating seed quality for germination, purity, and health?
87. What test determines the percentage of pure seed in a seed lot?
88. What is the process of growing and harvesting seeds for propagation?
89. What is the cleaning, drying, and treatment of seeds after harvest?
90. What declines with age and storage conditions?
91. What is a critical factor affecting seed longevity?
92. What can be broken by stratification or scarification?
93. What is the absorption of water by seeds, which is the first step in germination?
94. What is the organic layer of soil composed of leaf litter and decomposed organic matter?
95. What is the ability of soil to provide essential nutrients to plants?
96. What primary macronutrient is essential for root development and energy transfer?
97. What is the decomposed plant and animal material in soil?
98. What is the removal of topsoil by water or wind?
99. What soil conservation practice involves plowing along the contour lines of the land?
100. What is the accumulation of sodium ions in the soil?