Across
- 3. scarcity A condition characterized by a lack of access to clean water for drinking and sanitation.
- 4. A term used to describe the variety of life forms on Earth.
- 8. A renewable energy source derived from organic materials such as wood, crops, and waste.
- 9. quality monitor A device used to measure air pollution levels.
- 10. A type of renewable energy derived from the movement of water.
- 13. The practice of using natural resources responsibly to meet the needs of current and future generations.
- 15. A term used to describe the state of balance and well-being in body, mind, and spirit.
- 17. The gas responsible for trapping heat in the Earth's atmosphere.
- 18. A condition characterized by an excess of body fat.
- 20. A term used to describe the rate of loss of species from a particular habitat.
- 22. The process of reusing materials to create new products.
Down
- 1. The process of removing impurities from water to make it safe for drinking.
- 2. The state of the atmosphere at a particular time and place.
- 5. The process of removing salt from seawater to make it suitable for drinking.
- 6. A disease that spreads rapidly and affects a large number of people in a particular region.
- 7. A harmful substance released into the environment, often as a result of human activity.
- 11. The layer of the Earth's atmosphere that protects us from harmful UV radiation.
- 12. A serious and often life-threatening condition caused by exposure to extremely low temperatures.
- 13. A substance that contributes to air pollution and can lead to respiratory problems.
- 14. The process of breaking down organic matter in the absence of oxygen.
- 16. A type of pollution caused by excessive noise.
- 19. The process of converting waste materials into reusable materials.
- 21. The study of the interactions between living organisms and their environment.