You want to create a new warming appliance that is safe. Which type of electromagnetic wave would be most useful to investigate?-X-rays-infrared waves-gamma rays-ultraviolet waves

Answer:-infrared wavesExplanation:If electromagnetic waves are arranged in order of their energy in lowest to highest order then it is as following1) Radio waves2) Microwaves3) Infrared waves4) Visible light5) Ultraviolet waves6) X Rays 7) Gamma RaysSo here if we wish to use to create a safe device for warming which would be of lesser and safe energyso here correct answer would be Infrared waves

Infrared waves. The other 3 would hurt you because they are below the UV scale of 400 nanometers. Infrared is light that wouldn't harm you