Across
- 3. It's hard to get used to ______ if you've never lived in a city.
- 5. The factory produced a lot of _____.
- 6. The air ________ in Greece is considered moderately unsafe.
- 7. Plants absorb ________ dioxide during photosynthesis.
- 8. This beach has been ruined by __________.
- 9. These health risks are caused by vehicle __________.
Down
- 1. There are laws that prevent factories from _________their waste in rivers.
- 2. _________ that are used to grow plants are not good for the environment.
- 4. There are two big toy _________in the area.