Classification and labelling refer to the systematic organization and identification of items, substances, or organisms based on shared characteristics. This process helps in categorizing items into groups, making it easier to study, manage, and communicate information about them. For example, in biology, organisms are classified into categories like kingdom, phylum, and species. Labelling involves attaching information to these classified items, often in the form of tags or stickers. Labels provide essential details such as the name, usage, and safety information. In industries like chemicals or food, proper labelling is crucial for safety and compliance with regulations.