Ключевые слова: active, area, atom, atomic, attention, background, black, bomb, bomber, burning, caution, chemistry, contamination, crime, danger, dangerous, death, demolition, detonate, detonation, ecology, energetic, energy, environment, gamma, hazard, isolated, nuclear, poison, pollution, polonium, radiation, radioactive, radioactivity, radium, reactor, risk, sign, symbol, toxic, uranium, warning, waste, weapon, yellow, zone,