Across
- 6. a broadleaf evergreen forest found in wet, hot regions near the equator
- 8. using resources in ways that meet the needs of people without hurting the environment
- 10. the process by which carbon and oxygen cycle among plants, people and animals and the environment
- 13. the trading between lowland and highland areas
Down
- 1. cutting down trees in a forest
- 2. farming to provide food for your family, without much extra to sell
- 3. customs and ways of life handed down from the past
- 4. A change in a way of life to suit new conditions
- 5. the highest elevation where trees grow on a mountain
- 7. the division of land into zones based on elevation
- 8. the lowest level of elevation on mountains where snow remains year round
- 9. Native people of an area
- 11. the variety of plants and animals living in one area
- 12. the creation of flat areas on mountain slopes for farming