Across
- 4. one of production technology
- 6. something that can be used to give an alert
- 8. a transportation
- 9. one of communication technology
- 10. one of the example of water transportation
Down
- 1. a technique or a way of making/doing something,
- 2. a printed paper that is used to communicate
- 3. the example of air transportation
- 5. the material that is used in the modern technology
- 7. something that is invented by Alexander Graham Bell