Across
- 1. To make an effort to deal with a problem
- 3. Development that meets present needs without compromising future generations
- 8. Thinning of the ozone layer due to CFCs
- 9. Decrease in the variety of life forms in an ecosystem
- 10. Harmful substances in the air affecting health and environment
Down
- 2. Decrease in ocean pH due to carbon dioxide uptake
- 4. Sudden and significant changes in Earth's climate
- 5. Process of managing and discarding waste materials
- 6. Wearing away of topsoil by wind and water
- 7. Reduction in polar ice due to rising temperatures