Chapter Overview
This chapter introduces students to the concept of waste—especially waste water and garbage. It explains where waste comes from, how it affects the environment, and how it should be treated or disposed of responsibly. Students learn about sewage, drainage, and basic sanitation systems, while understanding the role they can play in keeping their homes, schools, and neighborhoods clean.
Important Keywords
- Waste: Materials that are no longer needed and are thrown away.
- Sewage: Waste water and human waste that flows from houses and buildings.
- Drainage: System of pipes or channels that remove waste water.
- Recycling: Reusing waste materials to make new products.
- Compost: Natural fertilizer made by decomposing kitchen waste and plant matter.
Detailed Notes
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