Across
- 3. a feature of earth that benefits people.
- 4. a change to the environment that is harmful to humans or other living things
- 5. a natural resource that can be replaced
- 8. protecting' preserving, and managing earth's natural resources.
Down
- 1. substances found in earth's crust that were formed over millions of years from the remains of dead organisms
- 2. tiny particles and gases released into the air
- 3. a natural resource that is not replaced as it is read.
- 6. another name for the natural resource oil.
- 7. energy from the sun.