Across
- 4. The depletion of this layer increases harmful UV radiation
- 5. An alternative type of energy that is more sustainable than fossil fuels
- 7. The destruction of forests
- 8. The warming of Earth's surface due to human activity
Down
- 1. A type of gas and air pollution caused by vehicles and factories
- 2. This occurs when environments are contaminated with harmful substances
- 3. The practice of cleaning and reusing materials to prevent waste
- 6. When a species or group of animals or plants are entirely killed off