Across
- 4. Even the upper _________ is polluted.
- 5. A particular item or object
- 9. Development or improvement
- 10. Technology has to be invented or _________.
Down
- 1. Relating to or using technology
- 2. _________ power is necessary in modern society.
- 3. The production of goods using machinery
- 6. To catch or hold in something
- 7. His _________ condition couldn't be treated with ancient medicine.
- 8. I hope that ___________ will help us time travel