Across
- 1. The process of preserving something
- 3. The reliable access to a sufficient amount of affordable, nutritious food
- 7. The state of being unemployed; not having a job
- 10. The number of people living in a certain place
- 12. The average number of years a person is expected to live
- 14. Global warming is the long-term heating of Earth's surface
- 15. The movement of persons from one place to another
Down
- 2. The basic physical and organizational structures and facilities
- 4. The process of leaving a country permanently to live in another
- 5. The surroundings in which a person, animal, or plant lives or operates
- 6. The introduction of harmful materials into the environment
- 8. The act of conserving , preserving and protecting something
- 9. A resource of economic value that cannot be readily replaced
- 11. The growth of cities due to population increase and development
- 13. The condition of having a paid work