Across
- 5. to keep up biodiversity and ecosystems
- 6. variety
- 9. changing from a society of farms to one of factories
- 10. when development does not cause future problems
Down
- 1. materials that come from the earth
- 2. bringing back an extinct species
- 3. animals and plants that live in nature
- 4. the fastest land animal, a feline
- 6. a country that has industrialized
- 7. a wide variety of types of plants and animals
- 8. a virus that attacks the immune system
- 11. the disease that he HIV virus gives people