Across
- 4. To improve an area of land so that it can be used.
- 7. Using methods that do not harm the environment.
- 9. Design to protect the environment or limit damage to the environment.
- 10. Poisonous and harmful to people, animals or the environment.
- 11. Design to cause as little harm as possible to the environment.
- 13. The amount of carbon dioxide a person, organisation, building, etc produces, used as a measure of their affect to the environment.
- 14. To encourage plants to grow or animal to live in an area where they are not usually found.
- 15. The process of damaging the air, water and land with chemicals or other substances.
Down
- 1. The process of changing waste materials such as newspaper and bottles so that they can be used again.
- 2. Activities by a business or other organisation that the organisation is concerned about environment.
- 3. The changes that are thought to be affecting the world's weather so that it is becoming warmer.
- 5. To make something dirty, polluted or poisonous by adding a chemical or waste.
- 6. The process of removing the trees from an area of land.
- 8. A substance can be separated into very small parts by bacteria so that they are not harmful to the environment.
- 12. The act of putting new trees into a place where the original trees have been cut down.