Ключевые слова: alert, art, atom, atomic, atomic energy, background, bomb, caution, chemistry, contaminated, contamination, cup, danger, dangerous, decorating, design, energy, environment, environmental disaster, environmental protection, garbage, grunge, hazard, radioactive, radioactivity, risk, safety, sample, separation, shiny, sign, solution, symbol, texture, tin, ton, toxic, trash, variety, warning, waste, white, yellow,