Surface adhesion refers to the ability of two surfaces to stick together. This phenomenon occurs due to various forces, such as molecular attraction, van der Waals forces, and chemical bonding. The effectiveness of adhesion can depend on the materials involved, surface roughness, and environmental conditions. In practical applications, surface adhesion is crucial in industries like construction, automotive, and electronics. For example, adhesives and coatings rely on strong surface adhesion to ensure durability and performance. Understanding how adhesion works helps engineers and scientists develop better materials and improve product reliability.