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Legit WAEC 2024 Agriculture science WAEC 2024 questions and answers questions and answers
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(1a)
(i) Cooperative farming: This allowed farmers to pool resources, share knowledge, and collectively invest in equipment and infrastructure, leading to increased productivity and efficiency.
(ii) Farm settlement scheme: This involved the establishment of organized agricultural settlements with infrastructure and support services, which helped in the efficient use of land and resources for agricultural production.
(iii) Agricultural research institute: These institutes conducted research to develop new farming techniques, crop varieties, and pest control methods, leading to improved yields and sustainability in agriculture.
(1b)
(i) Dibber: Seed drill
(ii) Hoe: Cultivator
(iii) Sickle: Mower
(iv) Wheelbarrow: Trailer
(v) Watering can: Sprayer
(1ci) Two advantages of using the mouldboard plough are:
(i) It helps in burying crop residues and weeds, which can improve soil structure
*2024 WAEC AGRIC THEORY ANSWERS*
*NUMBER THREE*
(3ai) Rhizobium: Nitrogen fixation in root nodules of leguminous plants.
(3aii) Nitrosomonas: Ammonia oxidation to nitrite.
(3aiii) Pseudomonas: Denitrification, converting nitrate to nitrogen gas.
(3aiv) Nitrobacter: Nitrite oxidation to nitrate.
(3bi)
(PICK THREE)
(i) Reduced yield due to sap-sucking, leading to wilting and stunted growth.
(ii) Transmission of viral diseases.
(ii). Honeydew secretion leading to sooty mold growth.
(iii) Distortion of leaves and flowers.
(iv)Weakened plants, makin them more susceptible to other pests and diseases.
(3bii)
(PICK FOUR)
(i) Introducing natural predators like ladybugs and lacewings.
(ii) Companion planting with repellent herbs like mint or marigold.
(iii) Pruning affected plant parts to remove aphid colonies.
(iv) Using reflective mulches to deter aphids.
(v) Regularly inspecting plants for early detection and manual removal of aphids.
(vi) Crop rotation to disrupt aphid life cycles.
(3ci) Forestry refers to the science and practice of managing forests, including conservation, utilization, and regeneration.
(3cii)
(PICK FIVE)
(i) Timber and lumber.
(ii) Paper and pulp.
(iii) Medicinal plants and herbs.
(iv) Resins and latex.
(v) Fruits and nuts.
(vi) Wildlife for hunting and ecotourism.
(vii) Non-timber forest products like mushrooms, berries, and honey.
*NUMBER FIVE*
*i. Removal of excess vegetation:*
1. Improved Oxygen Levels: Excessive vegetation can lead to oxygen depletion in the water, which is essential for the survival of fish.
2. Prevents Disease: Overgrown vegetation can harbor parasites and pathogens, increasing the risk of diseases among the fish population.
*ii. Removal of salt:*
1. Maintaining Optimal Salinity: Freshwater fish species require specific salinity levels to thrive, and excess salt can be harmful to them.
2. Preventing Osmotic Stress: High salt concentrations can lead to osmotic stress in fish, affecting their health and overall well-being.
*iii. Supplementary feeding:*
1. Enhanced Growth: Providing additional nutrients helps fish grow faster and healthier.
2. Compensation for Natural Food Shortage: It supplements the natural food available in the pond, especially during periods of scarcity.
*iv. Fertilizer application:*
1. Enhanced Phytoplankton Growth: Fertilizers can stimulate the growth of phytoplankton, which serves as a primary food source for many fish species.
2. Increased Fish Productivity: Fertilizer application can increase overall productivity in the pond by promoting a more robust food chain, resulting in higher fish yields.
(1ai)
Cooperative farming:
(i)Enables farmers to pool resources, reducing costs and increasing bargaining power.
(ii)Facilitates the sharing of knowledge and technologies among farmers.
(iii)Enhances access to markets for members, improving sales and incomes.
(1aii)
Farm settlement scheme:
(i)Provides land and resources to new farmers, helping to establish new agricultural ventures.
(ii)Encourages the establishment of agricultural communities, fostering collaboration and mutual support.
(iii)Offers training and development programs, raising farming standards and efficiency.
(1aiii)
Agricultural research institute:
(i)Conducts research on new agricultural techniques and technologies.
(ii)Develops new crop varieties that are more resistant to pests and diseases, boosting yields.
(iii)Provides extension services to farmers, disseminating knowledge and innovations.
(1b)
(i) Dibber: A tractor-mounted planter or seed drill.
(ii) Hoe: A cultivator or tiller attachment.
(iii) Sickle: A mower or a sickle bar mower attachment.
(iv) Wheelbarrow: A front-end loader or a utility cart attachment.
(v) Watering can: An irrigation system or sprayer attachment.
(1c)
(i) It efficiently turns over the upper layer of the soil, bringing fresh nutrients to the surface while burying weeds and the previous crop's residues.
(ii) The plough helps in creating a cleaner and more even seedbed for planting.
(1cii)
(i)it can lead to soil erosion. When the soil is turned over.
(ii)it exposes the lower layers to the elements, which can be particularly detrimental in areas susceptible to wind or water erosion.
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