Across
- 4. advantage or a good effect
- 7. an important discovery or event
- 10. it is similar to create, invent
- 11. it decays naturally
- 12. have an influence on sg
Down
- 1. create sg new
- 2. helpful, useful, good
- 3. intelligent and skilful
- 5. it doesn't harm the environment, the nature
- 6. very important because of the effects on future events
- 8. make sg better
- 9. it is the synonym of influence