No, deuterium is not radioactive.
"Radioactive."
non radioactive element
radioactive decay
No, graphite is not radioactive.
No, water is not radioactive.
All uranium compounds are radioactive to some degree.
Yes, it is possible for water to become radioactive if it comes into contact with radioactive materials or is contaminated by radioactive substances.
Zirconium does have radioactive isotopes, but the main ones used in industry are not radioactive.
Ordinary water is not radioactive, so it has no half-life.
The decay of radioactive isotopes.The decay of radioactive isotopes.The decay of radioactive isotopes.The decay of radioactive isotopes.
Radioactive substances are the things that put off radiation. These could be radioactive waste, or even radioactive materials not yet used.
No. There is no reason why rabbit feces should be radioactive, unless of course they ate something radioactive or they are under medical care using radioactive isotopes. It might be possible that if the soil is radioactive, and the plants become radioactive, that a rabbit might excrete radioactive feces from eating the plants.