What are examples of devices that use electromagnetic waves? Check all that apply.

Well, there aren't actually ANY that apply, because you haven't listed any. But I've lived a long time, and I remember hearing about electromagnetic waves and things that use them, so I can list a FEW of them for you:

- - radios

- - TVs

- - garage-door openers

- - TV remotes

- - cell phones

- - smart phones

- - GPS

- - walkie-talkies

- - car headlights

- - lava lamps

- - toasters

- - LEDs

- - light bulbs

- - fluorescent light tubes

- - police radios

- - Doppler weather radars

- - CB radios

- - ham radios

- - neon signs

- - eyeglasses

- - microscopes

- - telescopes

- - gas stoves

- - electric stoves

- - wood stoves

- - microwave ovens

- - tanning beds

- - cameras

- - lasers

- - CD recorders and players

- - DVD recorders and players

- - Bluray recorders and players

- - movie cameras

- - movie projectors

- - reading lamps

- - candles

- - whale-oil lamps

- - kerosene lanterns

- - flashlights

- - campfires

- - coffee percolators

- - heat lamps

- - cordless phones

These are just the ones I can think of right now off the top of my head. There are a lot of others.