Across
- 3. When the air, water and air gets dirty by harmful substances.
- 4. Things you throw away because you don’t need them anymore.
- 5. Turning old things into new things so they can be used again, like making new paper from old paper.
Down
- 1. Something that is good for nature and does not harm the environment.
- 2. The usual weather in a place over a long time, like how hot, cold, rainy, or snowy it is.