Across
- 3. The Tropical grassland
- 5. Rich soil and moderate climate
- 8. A geographic area where a specific organism lives
- 10. harmful materials released into the environment
- 11. Located in the arctic and is very cold
- 12. Moderate weather and leaves fall off trees
- 14. Rain, sleet, hail
- 17. Cold with snowfall and short growing seasons
- 18. Where the river meets the ocean
- 19. The degree in which heat is present
Down
- 1. A group of organisms living in the same place or having similar characteristics
- 2. Extremely dry and less than 25 cm of rain
- 4. The state where the atmosphere changes
- 6. High amount of rainfall
- 7. The relation of living organisms to one another
- 9. Less than 1% salt (ponds, lakes, streams)
- 13. Weather conditions in an area for a long period of time
- 15. A natural home for an organism
- 16. 75% of earth's surface
- 20. A process of changing to better suit an environment