Natural world
Across
- 2. A large natural stream of water flowing in a channel to the sea, a lake, or another river.
- 6. A mountain or hill having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
- 8. The variety of life in the world or in a particular habitat or ecosystem.
- 10. The natural home or environment of an animal, plant, or other organism.
- 11. A dense, tropical forest with a high amount of annual rainfall.
- 12. A large natural elevation of the earth's surface rising abruptly from the surrounding level.
Down
- 1. Animals that are not domesticated and live in natural habitats.
- 3. A biological community of interacting organisms and their physical environment.
- 4. The weather conditions prevailing in an area in general or over a long period.
- 5. A barren area of landscape where little precipitation occurs and consequently living conditions are hostile for plant and animal life.
- 7. A very large expanse of sea.
- 9. A large area covered chiefly with trees and undergrowth.