When a nuke goes off, it collects earth (dirt/debris) at the detonation site and funnels it upwards into the sky; this is the mushroom cloud. Wind blows the cloud to where ever the wind blows, carrying the contaminated cloud to different portions of the world.
Gases absorb radiation and some is absorbed in the atmosphere :)
It absorbs some of the radiation. The radiation is UV rays.
Nuclear Plants give off radiation, however when some of the nuclear plants in Japan were destroyed, some of the radiation did travel here but the radiation it sent here isn't strong enough to do any damage :)
Nuclear radiations include:Alpha radiationBeta radiationGamma radiation or x-raysFast or slow neutrons
it produces pollution,and radiation
energy/electricity/weapons
some problems are that the nuclear can give radiation and explode.
Atmosphere continuously receives radiation. Some like UV are absorbed by ozone.
Some is absorbed by molecules in the atmosphere (such as ultraviolet absorption by ozone), some is absorbed on the surface, and some is reflected by clouds or the surface back into space. The surface will re-radiate much of the absorbed solar radiation as infrared (thermal) radiation, and some of this is then absorbed by atmospheric gases such as carbon dioxide and methane.
Some of it is reflected back into space. Some of it is absorbed by the atmosphere. Some of it is scattered by the atmosphere.
Some conspiracies about chemtrails are that the trails are left behind when nuclear radiation takes over and area. If you have the radiation on you, then you are contagious.
Radiation Therapy is therapeutic. This means that radiation is used to treat cancer and some other diseases. Although there is some overlap, Nuclear Medicine is primarily diagnostic in nature which means that radioactive isotopes are used to make a diagnosis.