Which statement demonstrates that ultraviolet (uv) rays are electromagnetic waves? select one of the options below as your a. they require a medium to travel. b. they don’t require a medium to travel. c. the particles of the medium through which they travel vibrate perpendicularly to the direction of the wave. d. the particles of the medium through which they travel vibrate parallel to the direction of the wave. e. the particles in the medium through which they travel remain stationary.

UV rays hit the earth coming from the sun so there is a vacuum and there is no medium so
 They don’t require a medium to travel  demonstrate that they are electromagnetic
so option B is correct
hope it helps

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.