substances like uraniumVery dangerous | xray | X ray tubesVery dangerous | uv | Very hot objects, sun, sparks, mercury lamps | visible | Hot objects, sun, fluorescent substances, lasers, LEDS | infrared | Warm or hot objects, sun, ions, fires, grills, toasters | Microwaves, tv, radio | Radio trasmitters, including radar, tv transmitter, microwaves, ovens, mobile phones, microwaves are dangerous when absorbed by body tissue ; cause heating | 3. Smoke alarms contain a weak source made of Americium-241…
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