We often see rubbish piling up in schools. The rubbish is usually leftover food and drink wrappers. School waste generally provides organic and inorganic waste bins. In smk 4 semarang has a room that is used to process waste. There is plastic waste, cardboard, food waste wrappers, etc. This waste is collected and separated according to its type. Organic waste bins are marked green, inorganic waste is marked red. Examples of organic waste are cardboard boxes, etc. that can be recycled. Examples of inorganic waste are plastic, bottles, etc., that cannot be recycled. This waste can be processed into useful items depending on the type. Organic waste can be processed into fertiliser, inorganic waste can be processed into crafts from plastic waste. If waste is processed, it can reduce the amount of waste that accumulates and make useful items. We as students should keep the school environment clean. Throwing rubbish in its place is a rule that exists in all school plac...