Across
- 4. fuel mad from animals or plants remain
- 5. a tropical cyclone
- 6. taking too many fish from a body of water
- 8. damaged to the natural environment cause by harmful substance
- 10. the layer of air surrounds Earth
- 11. group of people in the same area share different culture
- 13. feeling loyalty toward one's nation
- 16. water that has been used
- 18. all plants and trees in a area
- 19. living in a city
- 20. to move from a region to another
Down
- 1. energy from the sun that can be convert to energy or electricity
- 2. Large ecosystem
- 3. the pattern of weather over a long period of time
- 7. the gradual increase in the temperature of Earth surface over time
- 9. geographic region with little rain
- 12. hot or cold
- 14. to move to a country
- 15. liquid rock that flows out of volcano
- 17. someone who seeks safety by going to another country