Across
- 4. A tropical forest, usually of tall, densely growing, broad-leaved evergreen trees in an area of high annual rainfall.
- 5. Elevation above sea level
- 6. A biome where grasses are the main plant life
- 8. The average weather conditions in an area over a long period of time
- 9. A group of ecosystems with similar climates and organisms
- 11. An extremely dry area with little water and few plants
Down
- 1. land dominated by trees and other woody vegetation
- 2. the single environmental factor closest to a tolerance limit for a given species at a given time
- 3. a large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill.
- 7. Distance north or south of the equator
- 10. A community of organisms and their abiotic environment
- 12. effect the process by which rising air on one side of a mountain releases all of its moisture so that the opposite side receives only dry air.