Corrosion is a natural process that occurs when metals react with their environment, leading to deterioration. This often happens when metals like iron come into contact with moisture and oxygen, resulting in rust. Corrosion can weaken structures, machinery, and tools, making it a significant concern in construction and manufacturing. There are various types of corrosion, including galvanic corrosion, which occurs when two different metals are in contact in a conductive solution. Preventive measures, such as applying protective coatings or using corrosion-resistant materials like stainless steel, can help reduce the impact of corrosion on metal objects.