Agriculture Science MCQs 2026

What is the term for the practice of growing a single crop repeatedly on the same land, without rotation

1. AMonoculture✓
2. BPolyculture (the opposite practice - growing multiple crop types together)✓
3. CCrop rotation (a different, alternating practice)✓
4. DIntercropping (a different, simultaneous multi-crop practice)✓

What is the term for growing two or more different crops simultaneously on the same field

1. AMonoculture (the opposite practice - growing only a single crop)✓
2. BCrop rotation (a related, but distinct, alternating practice)✓
3. CIntercropping (Polyculture)✓
4. DFallowing (a different practice - leaving land unplanted temporarily)✓

What is the term for leaving agricultural land unplanted for a period, allowing it to naturally restore fertility

1. AMonoculture (a different practice - repeatedly growing the same crop)✓
2. BCrop rotation (a different, alternating-crop practice)✓
3. CIntercropping (a different, simultaneous multi-crop practice)✓
4. DFallowing✓

What are the three primary macronutrients essential for plant growth, commonly represented by the NPK ratio on fertilizers

1. ANitrogen, Phosphorus, and Potassium✓
2. BNitrogen, Phosphorus, and Calcium (Calcium is not part of the core NPK designation)✓
3. CCarbon, Phosphorus, and Potassium (Carbon is not part of the core NPK designation)✓
4. DNitrogen, Oxygen, and Potassium (Oxygen is not part of the core NPK designation)✓

What essential plant nutrient primarily supports leafy green growth and overall plant vigor

1. ANitrogen✓
2. BPhosphorus (primarily supports root development and flowering)✓
3. CPotassium (primarily supports overall plant health and disease resistance)✓
4. DCalcium (supports cell wall structure, a secondary nutrient)✓

What essential plant nutrient primarily supports root development and flowering/fruiting

1. ANitrogen (primarily supports leafy growth)✓
2. BPhosphorus✓
3. CPotassium (primarily supports overall plant health and disease resistance)✓
4. DCalcium (supports cell wall structure, a secondary nutrient)✓

What essential plant nutrient primarily supports overall plant health, disease resistance, and water regulation

1. ANitrogen (primarily supports leafy growth)✓
2. BPhosphorus (primarily supports root development and flowering)✓
3. CPotassium✓
4. DCalcium (supports cell wall structure, a secondary nutrient)✓

What is the term for the science and practice of cultivating soil, growing crops, and raising livestock

1. AAgriculture✓
2. BHorticulture (a narrower, related field, focused specifically on garden crops/plants)✓
3. CAquaculture (a different, related field, focused on farming aquatic organisms)✓
4. DSericulture (a different, narrower field, focused specifically on silk production)✓

What is the term for the specific branch of agriculture focused on cultivating fruits, vegetables, and ornamental plants

1. AAgriculture (the broader field)✓
2. BHorticulture✓
3. CAquaculture (a different field, focused on farming aquatic organisms)✓
4. DSericulture (a different, narrower field, focused specifically on silk production)✓

What is the term for the practice of farming aquatic organisms, such as fish and shellfish, for food

1. AAgriculture (the broader field, primarily focused on land-based farming)✓
2. BHorticulture (a different field, focused on fruits/vegetables/ornamentals)✓
3. CAquaculture✓
4. DSericulture (a different, narrower field, focused specifically on silk production)✓

What is the term for the practice of raising silkworms specifically for silk production

1. AAgriculture (the broader field)✓
2. BHorticulture (a different field, focused on fruits/vegetables/ornamentals)✓
3. CAquaculture (a different field, focused on farming aquatic organisms)✓
4. DSericulture✓

What historical agricultural period, beginning in the mid-20th century, involved major increases in crop yields through improved seed varieties, fertilizers, and irrigation

1. AAgricultural Revolution (a broader, earlier historical shift to farming generally)✓
2. BGreen Revolution✓
3. CIndustrial Revolution (a broader, different historical economic/technological shift)✓
4. DDigital Revolution (a much later, technology-focused shift, unrelated to this agricultural context)✓

Who is often credited as a key figure in the Green Revolution, known for developing high-yield wheat varieties

1. ANorman Borlaug✓
2. BGregor Mendel (an earlier scientist, foundational to genetics, but not this specific Green Revolution role)✓
3. CCharles Darwin (an earlier scientist, foundational to evolution theory, but not this specific Green Revolution role)✓
4. DLuther Burbank (a related agricultural scientist, known for plant breeding, but not primarily credited with this specific role)✓

What is the term for crops that have been genetically modified to be resistant to specific herbicides or pests

1. AGenetically Modified (GM) crops✓
2. BOrganic crops (the opposite category - grown without synthetic genetic modification/inputs)✓
3. CHeirloom crops (relates to traditional, non-hybrid varieties, a different concept)✓
4. DHybrid crops (a related, but distinct concept - crossbreeding rather than direct genetic modification)✓

What is the term for agricultural practices that avoid synthetic pesticides, fertilizers, and genetically modified organisms

1. AOrganic farming✓
2. BConventional farming (the opposite, typically more input-intensive approach)✓
3. CIndustrial farming (a related, but distinct term, often associated with large-scale conventional practices)✓
4. DGenetically Modified farming (the opposite approach - relies on GM techniques)✓

What is the general term for the science and practice of managing soil to optimize plant growth and health

1. ASoil science (Pedology/Edaphology)✓
2. BAgronomy (a broader, related field, encompassing crop production generally, of which soil science is a component)✓
3. CHorticulture (a narrower, related field, focused specifically on garden crops/plants)✓
4. DBotany (a broader, related field, focused on plant biology generally)✓

What is the general term for the broader science of crop production and soil management, encompassing various agricultural practices

1. AAgronomy✓
2. BSoil science (a narrower, related field, focused specifically on soil)✓
3. CHorticulture (a narrower, related field, focused specifically on garden crops/plants)✓
4. DBotany (a broader, related field, focused on plant biology generally)✓

What is the term for irrigation methods that deliver water directly to plant roots through a network of tubes and emitters, minimizing water waste

1. ADrip irrigation✓
2. BFlood irrigation (a different, less water-efficient method)✓
3. CSprinkler irrigation (a different, moderately water-efficient method)✓
4. DFurrow irrigation (a different, less water-efficient method)✓

What is the term for pest control approaches that combine multiple strategies, including biological, cultural, and minimal chemical methods, to manage pests sustainably

1. AIntegrated Pest Management (IPM)✓
2. BChemical pest control (a narrower, single-strategy approach relying primarily on synthetic chemicals)✓
3. COrganic pest control (a related, but narrower approach, specifically avoiding synthetic chemicals)✓
4. DBiological pest control (a narrower, single-strategy approach, one component often used within IPM)✓

What is the term for irrigation methods that spray water over crops in a manner similar to natural rainfall

1. ADrip irrigation (a different, more targeted, water-efficient method)✓
2. BSprinkler irrigation✓
3. CFurrow irrigation (a different method, using channels between crop rows)✓
4. DSubsurface irrigation (a different method, delivering water below the soil surface)✓

What is the term for the practice of alternating different crops on the same land across growing seasons, to maintain soil health

1. AMonoculture (the opposite practice - repeatedly growing the same crop)✓
2. BCrop rotation✓
3. CPolyculture (a related, but distinct practice - growing multiple crops simultaneously)✓
4. DFallowing (a related, but distinct practice - leaving land unplanted temporarily)✓

What is the term for the science and technology of selectively breeding plants and animals to enhance desirable traits

1. ASelective breeding✓
2. BGenetic engineering (a related, but distinct, more direct DNA-modification technique)✓
3. CCloning (a related, but distinct technique, creating genetically identical copies)✓
4. DHybridization (a related, but narrower, specific breeding technique - crossing different varieties/species)✓

What is the term for the process of introducing beneficial insects to control pest populations naturally, part of integrated pest management

1. ABiological control✓
2. BChemical control (relies on synthetic pesticides, a different approach)✓
3. CMechanical control (relies on physical methods, a different approach)✓
4. DCultural control (relies on farming practice adjustments, a different, though related, approach)✓

What is the term for crops specifically bred or engineered to produce their own natural pest resistance, such as Bt cotton

1. APest-resistant crops✓
2. BDrought-resistant crops (a different specific resistance trait)✓
3. CHerbicide-resistant crops (a different specific resistance trait)✓
4. DFrost-resistant crops (a different specific resistance trait)✓

What is the term for farming practices that minimize soil disturbance, such as no-till or reduced-till farming, to preserve soil structure and reduce erosion

1. AConservation tillage✓
2. BConventional tillage (the opposite, more soil-disturbing approach)✓
3. CDeep tillage (a different, more intensive soil-disturbing approach)✓
4. DCrop rotation (a related, but distinct practice, focused on alternating crops rather than tillage methods)✓

What is the term for the loss of topsoil due to wind, water, or human activity, a significant agricultural concern

1. ASoil erosion✓
2. BSoil fertility (relates to soil's capacity to support plant growth, a different concept)✓
3. CSoil compaction (relates to soil density increase from pressure, a different concept)✓
4. DSoil salinity (relates to salt accumulation in soil, a different concept)✓

What is the term for the accumulation of salt in soil, often resulting from improper irrigation, which can harm plant growth

1. ASoil erosion (relates to topsoil loss, a different concept)✓
2. BSoil fertility (relates to soil's capacity to support growth, a different concept)✓
3. CSoil compaction (relates to soil density increase, a different concept)✓
4. DSoil salinity✓

What is the term for farming practices specifically aimed at long-term environmental, economic, and social viability

1. ASustainable agriculture✓
2. BIndustrial agriculture (a related, but distinct term, often associated with large-scale, input-intensive practices)✓
3. CSubsistence agriculture (a different, smaller-scale farming approach primarily for the farmer's own family needs)✓
4. DCommercial agriculture (a related, but distinct term, focused on farming for profit/market sale, not specifically defined by long-term sustainability)✓

What is the term for farming primarily to meet the basic needs of the farming family, with little surplus for sale

1. ASustainable agriculture (a different concept, focused on long-term viability broadly)✓
2. BIndustrial agriculture (a different, typically large-scale, market-focused approach)✓
3. CSubsistence agriculture✓
4. DCommercial agriculture (the opposite approach - farming primarily for market sale/profit)✓

What is the term for farming conducted primarily for profit and market sale, often at a larger commercial scale

1. ASustainable agriculture (a different concept, focused on long-term viability broadly)✓
2. BSubsistence agriculture (the opposite approach - farming primarily for family needs)✓
3. CCommercial agriculture✓
4. DOrganic agriculture (a related, but distinct concept, focused specifically on avoiding synthetic inputs, not defined by scale/purpose)✓

What is the term for the specific breeding technique of crossing two different plant varieties or species to combine desirable traits

1. ASelective breeding (a broader term, encompassing various breeding approaches)✓
2. BGenetic engineering (a different, more direct DNA-modification technique)✓
3. CCloning (a different technique, creating genetically identical copies)✓
4. DHybridization✓

What is the term for traditional, open-pollinated plant varieties passed down through generations, valued for genetic diversity

1. AHybrid varieties (created through controlled crossbreeding, a different concept)✓
2. BHeirloom varieties✓
3. CGenetically Modified varieties (created through direct genetic engineering, a different concept)✓
4. DCommercial varieties (a broader, less specific term, not necessarily defined by this traditional/heritage aspect)✓

What is the term for the practice of storing harvested seeds for future planting, an ancient agricultural practice increasingly regulated by modern seed patents

1. ASeed saving✓
2. BCrop rotation (a different, related soil-management practice)✓
3. CSelective breeding (a related, but distinct practice, focused on trait improvement rather than simply storage)✓
4. DFallowing (a different practice, leaving land unplanted)✓

What is the general term for the study of raising livestock for food, fiber, and other agricultural products

1. AAnimal husbandry✓
2. BHorticulture (a different field, focused on plants specifically)✓
3. CAquaculture (a different field, focused on aquatic organisms)✓
4. DAgronomy (a different field, focused on crop production/soil management)✓

What is the term for the practice of allowing livestock to graze on pasture land, as opposed to confined feeding operations

1. AFree-range/pasture grazing✓
2. BFactory farming (a different, typically confined, intensive livestock-raising approach)✓
3. CFeedlot farming (a related, specific type of confined operation, particularly common for cattle finishing)✓
4. DIntensive farming (a broader term, often associated with confined, high-input approaches, opposite of pasture grazing)✓

What is the term for large-scale, confined livestock operations focused on maximizing production efficiency, sometimes criticized for animal welfare concerns

1. AFactory farming (Intensive livestock farming)✓
2. BFree-range farming (the opposite, less confined approach)✓
3. COrganic farming (a related, but distinct concept, focused on avoiding synthetic inputs generally)✓
4. DSubsistence farming (a different, smaller-scale approach, primarily for family needs)✓