Waste generated at school: pencil shaving, paper, sewage, laboratory waste.
Waste generated at home: vegetable and fruit peels, kitchen and other domestic water, polyethylene, sewage.
Waste generated at trip to other places: disposals, sewage, water bottles, food wrappings.
Sewage is almost impossible to reduce, all other waste material production can be reduced by their judicial use and by using the eco-friendly material e.g., use of paper bags instead of polybags.