The Environment

1. The activity of capturing and killing wild animals or game for food or sport.
4. The activity of catching fish, either for food or as a sport.
6. Destroying the environment in which plants and animals live.
9. When animal and plant species are killed at a faster rate that the population can be replaced.
12. The number and variety of organisms found within a specified geographic region
13. A group of individual organisms that are capable of interbreeding to produce fertile offspring in nature.
15. The natural home or environment of an animal, plant, or other organism.
16. A large natural elevation of the earth's surface rising abruptly from the surrounding level, or a large steep hill.
17. The action or process of causing so much damage to something that it no longer exists or cannot be repaired.
18. A large naturally occurring community of flora and fauna occupying a major habitat.

2. A large open area of country covered with grass, especially one used for grazing.
3. A forest with heavy annual rainfall.
5. A large, flat parcel of land with few trees.
7. When species are introduced to an area from another foreign ecosystem.
8. The introduction of anything to the environment that contaminates it and, in some way, causes it to be spoiled.
10. The gradual increase in the temperature of the earth’s atmosphere believed to be caused by the greenhouse effect.
11. A vast, flat, treeless Artic region of Europe, Asia and North America in which the subsoil is often frozen.
14. The action of an element coming forcibly into contact with another.
17. A dry, barren area of land, typically covered with sand.