Across
- 1. Discarded electronic devices.
- 3. Artificial intelligence; technology that makes computers and machines smart.
- 5. Actions to preserve and safeguard nature.
- 6. A clean energy source obtained from the sun.
- 8. Energy from the wind used to produce electricity.
- 9. Energy obtained from moving water.
- 10. A harmful gas released by cars into the air.
Down
- 2. The natural world and its surroundings where we live.
- 4. Contamination of nature that causes harm to the environment.
- 7. The process of turning waste materials into new products.