Write the numbers of the true statements in one message 1. Radioactive materials are always dangerous, regardless of how much you are exposed to
2. The radiation changes the way cells behave
3. The energy can damage or destroy cells completely
4. Humans cannot withstand any radiation for any amount of time
5. Radioactive isotopes can sit in the stomach and irradiate for a long time.
6. Radiation can burn skin or cause cancer.
7. Radiation can cause people to grow extra organs
8. Radiation is never used in day to day life
9. Radiation can cause leukaemia and other diseases of the blood.
10. Protective clothing can prevent the body from being contaminated
11. Touching radioactive substances is okay, it is only dangerous to breathe them in