Across
- 6. Small particles in the air that can be harmful to human health (11,6)
- 8. Pollution of the environment by harmful substances (13)
- 9. Harmful sound levels in the environment (5,9)
- 12. Pollution to water that exists underground in saturated zones beneath the land surface (11,9)
- 14. Non-renewable energy sources such as coal, oil and gas (6,5)
- 16. Harmful substances that can cause illness or death (6)
- 17. Wastewater from homes and industries that is released into the environment (9)
- 19. Sites for the disposal of waste material in the ground (9)
- 20. Release of pollutants into the atmosphere (9)
- 21. Degree of cleanliness of the air (3,7)
- 22. Discard plastic products that pollute the environment (7,5)
- 23. Contamination of water bodies by harmful substances (5,9)
- 24. Precipitation that is acidic due to pollution (4,4)
Down
- 1. Substances that cannot be broken down by natural processes (3,13)
- 2. Increase in the Earth's average surface temperature caused by greenhouse gases(6,7)
- 3. The decline of species and ecosystems due to human activities (12,3)
- 4. Metallic elements with high toxicity levels that can accumulate in the environment and cause harm to human health (5,6)
- 5. Converting waste materials into reusable objects (9)
- 7. Waste that is potentially harmful to human health and the environment (9,5)
- 8. The amount of carbon dioxide emitted by an individual, organisation, or product(6,9)
- 10. Development that meets the needs of the present without compromising the ability of future generations to meet their own needs (11,11)
- 11. The use of living organisms to detoxify pollutants in the environment (14)
- 13. Chemical used to kill pests, which can be harmful to the environment and human health (10)
- 15. The impact of human activities on the environment, measured in terms of the land and resources required to sustain them (10,9)
- 18. Reduction in the Earth's ozone layer caused by pollutants such as chlorofluorocarbons (CFCs) (5,9)