Across
- 3. desertlike conditions
- 5. frozen layers of soil
- 7. grassland
- 8. areas of tall grasses
- 10. winds wind that blows in the same direction
- 12. seasonal winds
- 13. Plants and animals that depend on each other
- 15. decayed plant or animal matter
- 16. the short term changes
- 19. a region's average weather
- 20. resource matirial in nature
Down
- 1. resources recorses that are not replaced
- 2. fuiles nonrenewable resources
- 4. planting trees
- 6. resource resources on earth
- 9. surroundings
- 11. cleering of trees
- 14. a place were 2 air masses meet
- 17. place were an animal or plant lives
- 18. currents large streams