Photosynthesis - The process by which plants use sunlight, water, and carbon dioxide to make their own food., Organic Farming - A system of agriculture that avoids the use of synthetic pesticides, fertilizers, and other chemicals., Agricultural Machinery - Machines used on a farm to help with planting, harvesting, and other tasks., Crop Rotation - The practice of planting different crops in the same field each year to improve soil fertility and reduce pest infestations., Soil Conservation - The practice of protecting the soil against erosion, or the depletion of its nutrients.,

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