The challenge of making nuclear power safer doesn't end after the power has been generated. Nuclear fuel remains dangerously radioactive for thousands of years after it is no longer useful in a commercial reactor. The resulting waste disposal problem has become a major challenge for policymakers.
Nuclear waste is never a problem. Low and intermediate radioactive waste is store in barrels mixed with cement. High active waste (as nuclear fuel) is stored either under water (wet storage) or in canisters designed for this purpose (dry storage).
Nuclear waste. Other than that probably plastic because it is not biodegradable.
These are wastes emitting nuclear radiations.
On the power station sites mostly
easily recovered
All countries that have nuclear reactors have nuclear waste and it is always a problem, though a manageable one.
No, it is not.
Yes, but it is a manageable problem
Three problems associated with nuclear waste
A major drawback to the use of nuclear power is that it produces radioactive waste. This waste can pollute water sources and kill organisms.
Nuclear wastes are sometimes said to be a problem too difficult to solve because the waste stays radioactive for so long. The only thing that gets rid of nuclear waste is time.
The reason it isn't safe to jump in water that is contaminated with nuclear waste material is because it can make you sick or even kill you.
Disposing it.