Why is d2o used as moderator?

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Tags

1. #absorption
2. #hydrogen
3. #reactors
4. #because
5. #moderator
6. #significantly
7. #water
8. #effectively
9. #deuterium
10. #neutrons
11. #ordinary
12. #heavy
13. #probability
14. #natural
15. #atoms
16. #containing
17. #proportions
18. #slows