Across
- 3. using money carefully
- 4. a person or a thing that causes something to happen
- 5. ____emissions: excess chemicals that are released into the air from fuel when driving
- 7. the natural world
- 9. Fuel____: the number of miles you can drive per gallon of gas
- 10. A mix of two things
Down
- 1. moving faster
- 2. a mixture of fog and smoke
- 4. a person who buys goods and services
- 6. related to cities (not rural/countryside areas)
- 8. keep something in good condition