How is ozone layer useful to us?

Related questions

1. Where is the ozone helpful?
2. Who first discovered ozone hole?
3. Can humans breathe o3?
4. Is ozone water safe to drink?
5. Can you smell ozone?
6. What is ozone hole in simple words?
7. What is the advantage of ozone layer?
8. Can you drink ozone water?
9. Why is ozone added to water?
10. Is o3 dangerous to humans?

Tags

1. #difficult
2. #ultraviolet
3. #would
4. #survive
5. #anything
6. #earth
7. #without
8. #layer
9. #living
10. #protects
11. #harmful
12. #surface
13. #ozone
14. #atmosphere
15. #everything