Across
- 3. A layer of gases surrounding the Earth
- 5. A network that connects computers and devices globally
- 8. a road vehicle powered by an internal combustion engine
- 9. A machine used for communication, especially for long distances
- 10. An effect caused by the trapping of heat in the atmosphere
Down
- 1. able to be maintained at a certain rate or level
- 2. A device used to cool food and drinks
- 4. The energy that powers machines and appliances
- 6. A process of repairing an item to like-new conditions
- 7. A source of energy that can be replenished