Across
- 3. the fact or process of a species, family, or other group of animals or plants becoming extinct.
- 5. things that are no longer useful or wanted
- 8. the action or state of making or being made impure by polluting
Down
- 1. (waste) into reusable material.
- 2. knowledge or perception of a situation or fact
- 4. poisonous.
- 6. a synthetic material made from a wide range of organic polymers such as polyethylene
- 7. air pollution that reduces visibility