Question

what are ultraviolet rays responsible for?
tv screens
cell phone towers
vitamin d and sunburns

Explanation:

Ultraviolet (UV) rays from the Sun have two main effects. They can cause sunburns as they damage the skin cells. At the same time, when the skin is exposed to UV rays (in moderation), it triggers the synthesis of Vitamin D, which is essential for calcium absorption and bone health. TV screens mainly use visible light and some phosphors for image display. Cell phone towers use radio waves for communication.

Answer:

Vitamin D and sunburns