Environmental Science

1. The death of all members of a species.
4. A country with high personal wealth and slower population growth.
8. Resources that form more slowly than they are used up.
9. The number and variety of species that live in an area.
10. The study of how humans affect the environment.
11. Time when people lived in tribes and used fire to manage the prairie.
13. Unwanted changes in the air, water, or soil.
15. Material that can be broken down by natural processes.
17. The time when people began to raise their own food and animals.
18. Comparing the costs of solving environmental problems with the benefits.

2. Time period when society began using fossil fuels.
3. The use of resources so that future generations will have enough.
5. Resources that can be naturally replaced relatively quickly.
6. A country with much poverty and high population growth.
7. A logical, testable explanation that is not based on intuition.
12. The study of living things and how they interact with the environment.
14. Material that cannot be broken down by natural processes.
16. Drawings, diagrams, or 3D objects that help scientists understand how things work.