Across
- 2. when resource use can continue at the same rate into the foreseeable future without depleting; when human needs are met and the population can survive indefinitely
- 5. the natural materials and energy sources found in nature that humans need to survive
- 9. a testable prediction
- 10. a social movement dedicated to protecting the natural world from undesirable changes brought about by human actions
- 11. the living parts of an environment
- 13. the environmental impact of an individual or population in terms of the total amount of land and water required
- 14. the information collected in an experiment
Down
- 1. a resource that is naturally formed much more slowly than it is used
- 3. the study of our planet’s natural systems and how humans and the environment affect one another
- 4. a resource that is naturally replenished or renewed over short periods of time
- 6. the nonliving parts of an environment
- 7. a nonrenewable resource such as oil, coal, and natural gas that is formed over millions of years from the remains of living things
- 8. a broad explanation for a wide range of observations
- 12. all the living and nonliving things with which organisms interact