In this lesson on retail management for ninth-grade students, various types of waste, particularly paper waste and organic waste, are discussed. The lesson emphasizes the importance of recycling and properly managing waste generated by retail activities, including packaging materials and other paper products. Students are encouraged to reflect on their own consumption habits and how they can contribute to recycling efforts, especially with items like magazines and newspapers. Additionally, the lesson highlights the natural decomposition of organic waste and its role in the ecosystem.