Across
- 3. can colonize bare rocks, first arrival after the ice age
- 5. poorly studied ecozone with a lot of muskegs
- 10. a specie that is characteristic for a specific ecozone
- 12. the metamorphic for limestone
- 13. norther ecozone of Ontario
- 14. rock under the soil
- 15. can be seen as giant bulldozers
Down
- 1. along with poplar, on of the first tree to colonise a site
- 2. a forest that reached is maturity reached is a X forest
- 4. the raising of the land after the last ice age
- 6. place free of ice during the last ice age
- 7. a volcanic (igneous) rock
- 8. a type of sedimentary containing calcium
- 9. found only on the canadian shield
- 11. a small isolated population is a X population