👉 Fluids are categorized into two main types: aqueous and non-aqueous. Aqueous fluids, also known as water-based fluids, consist primarily of water and are essential for life, playing critical roles in biological processes, hydration, and many industrial applications. They can be further divided into polar (like water itself) and non-polar (such as oils) fluids based on their molecular interactions. Non-aqueous fluids, on the other hand, are not water-soluble and include solvents like ethanol, acetone, and hydrocarbons. These fluids are crucial in various industries for their ability to dissolve non-polar substances, making them indispensable in processes like painting, printing, and chemical manufacturing. Understanding these fluid types is fundamental to grasping their behavior, applications, and interactions in different environments.