Ключевые слова: alarm, alert, atom, atomic, attention, biohazard, black, button, caution, circle, danger, dangerous, design, ecology, element, energy, flat, gray, hazard, health, icon, illustration, industry, isolated, life, logo, minimalism, nuclear, power, radiation, radioactive, radioactivity, ray, risk, round, safety, science, sign, symbol, technology, toxic, toxin, triangle, uranium, volume, warning, yellow,