Why is water a good radiation shield?

Related questions

1. What things cause radiation?
2. Can radioactivity be eliminated?
3. How many bananas will kill you from radiation?
4. Can bananas kill you?
5. Which kind of radiation causes radiation sickness?
6. Is radiation harmful to body?
7. What happens if you eat 6 bananas a day?
8. Can radiation be good for you?
9. How bad is radioactive waste?
10. How many bananas should a person eat daily?

Tags

1. #neutrons
2. #radiation
3. #neutron
4. #because
5. #enough
6. #slowing
7. #leaving
8. #shield
9. #fissions
10. #water
11. #cause