Fertilizers can be made by combining natural or chemical materials that give nutrients to plants. Organic Fertilizer – comes from natural waste.Example: compost (from food scraps, dried leaves, and animal manure).Steps: Collect biodegradable waste → let it decompose → mix into soil.Inorganic/Chemical Fertilizer – made in factories using minerals and chemicals like nitrogen, phosphorus, and potassium.Example: urea, ammonium phosphate.