Across
- 4. a fuel that runs gas-powered cars
- 8. something that is used to transport people or goods
- 9. the power to build up a image in your head
- 12. to grow/ become mature
- 13. a thing from which something is obtained
- 14. to dedicade one's time and resources to something
- 15. the increasing and decreasing of the sea-level
Down
- 1. a fog due to air pollution
- 2. something that is made out of two elements
- 3. someone who comes up with a brand new idea
- 5. to buy something
- 6. to go down very quickly
- 7. the discharge of a pollutant
- 10. to speed up
- 11. a device that is used to reduce the noise of something