Across
- 3. anything that makes the air, water, or soil dirty
- 5. people who move to a new country in order to live there
- 9. a group of people who share the same culture
- 10. ten years
Down
- 1. one hundred years
- 2. a shortage of water due to lack of rainfall
- 4. a journey by a group of people for a specific purpose
- 6. a person who starts and runs his or her own business
- 7. a new idea, piece of equipment, or method
- 8. a manmade channel use to transport water