Organic acids are compounds that contain carbon and have acidic properties. They are commonly found in nature and can be derived from plants and animals. Examples include acetic acid, which gives vinegar its sour taste, and citric acid, found in citrus fruits like lemons and oranges. These acids play important roles in various biological processes and can also be used in food preservation and flavoring. In addition to their natural occurrence, organic acids are used in many industrial applications. They can be found in products such as food additives, cleaning agents, and pharmaceuticals. Their ability to donate protons (H⁺ ions) makes them useful in chemical reactions and helps regulate pH levels in different environments.