Across
- 1. the color of most grass and trees
- 3. not clean
- 5. a clear liquid, without color or taste, that forms the seas, lakes, rivers, and rain
- 6. tall woody plants
- 7. the third planet from the sun
- 9. a large area covered with trees
Down
- 1. household waste or rubbish
- 2. keep safe from harm or danger
- 4. use something again more than once
- 8. mixture of invisible gases that surrounds the earth