No, it is perfectly legal as long as it is used on your own property.
No, China has several hundred nuclear bombs and has had bombs since 1964.
It can.
No
Japan has no nuclear weapons.
It depends which type it is. It can be Uranium or Plutonium
No, China has several hundred nuclear bombs and has had bombs since 1964.
they mostly not
Nuclear bombs are illegal since bombs could potentially be harmful to others and places, so no it is not legal.
I'm 99% sure that it's illegal to disclose the process for making nuclear bombs exactly. You're on your own.
yes, some people research and try to make nuclear bombs in their own houses.
How to make nuclear bombs was solved over half a century ago.
It is illegal for private individuals to prepare bombs of any type. But countries can do what they want to. Ownership of highly enriched Uranium, Uranium-233, or Plutonium by private individuals is illegal in the US and probably several other countries. Without one or the other no nuclear bomb can be built.
It can.
Some bombs are nuclear. But most bombs are not nuclear.
No, only certain ways of testing them and only if a country agrees to the terms of that treaty.
Nuclear bombs are so powerful, and release so much radioactive fallout, that any large-scale use of nuclear bombs would kill everbody and make the world uninhabitable.
yes