Across
- 3. primary federal law in the United States governing water pollution
- 4. someone who studies marine life
- 6. the introduction of harmful materials into the environment
- 10. a measure of the demands made by one person or group on global natural resources
- 12. biome with all the water on Earth
- 15. when a shared resource is unregulated, individuals will consume it at a selfish rate
- 18. biome with rocks and minerals on Earth
- 19. biome occupied by living organisms
- 20. biome with all the ice on Earth
Down
- 1. the ability to be maintained at a certain rate or level
- 2. the study of living and nonliving things
- 5. a large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra
- 7. a biological community of interacting organisms and their physical environment
- 8. a change in global or regional climate patterns
- 9. fossil fuels (source)
- 11. think about the cost of the resource and whether it is worth what is gained
- 13. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
- 14. they study how water moves across and through the Earth's crust
- 16. sunlight, fresh water (source)
- 17. an expert in or student of the behavior, physiology, classification, and distribution of animals