Across
- 3. rain with sulphur dioxide& nitrogen oxide
- 5. the natural world, surrounding or condition.
- 7. short term disease
- 8. contaminates that affect land, water &air
- 10. disagreement
- 11. Gradual warming of the earth's surface
- 12. physical activity that improves health
Down
- 1. build-up of toxins in an ecosystem
- 2. component of health that deals with a person's psychological state
- 4. use of force to harm someone
- 6. study of human health
- 9. long term disease