Across
- 2. Smog constitutes mainly which gas?
- 6. The UV protective ozone layer is present in which layer?
- 8. Precipitation with acidic components, such as sulfuric or nitric acid is called?
- 9. Which development defines satisfying human needs without depriving future generations of natural resources?
- 10. Which age describes the period when the human activity started to have a significant impact on the planet's climate and ecosystems?
- 12. Name a man-made ecosystem?
Down
- 1. A biogeographic region with significant levels of biodiversity that is threatened by human habitation?
- 3. the most abundant atmospheric gas which is not a greenhouse gas?
- 4. Which extreme coughing conditions can be caused due to air pollution and smog?
- 5. Deforestation can lead to the increase of which gas in the atmosphere?
- 7. What do we call the life-supporting stratum of the ecosystem which is composed of all living organisms and the abiotic components that support them?
- 11. What can be used in vehicles to lower air pollution?