Nuclear holocaust
It is the name given to large scale destruction and devastation that would be caused by the use of nuclear weapon. The radioactive waste will hang like a cloud in the earth’s atmosphere. It will absorb the solar radiations and there may be a long nuclear winter.
Radiating hazards human beings
Pathologically
Genetically
The safe limit of radiation dose is 50 µ sevent (micro severt) per annum including X – ray and UV rays.