Final answer:
UV light, or ultraviolet light, can cause burns when a person is overexposed to it. It carries more energy than visible light and can break bonds at the cellular level. A small fraction of UV rays from the sun can cause sunburn or skin cancer.
Step-by-step explanation:
UV light, or ultraviolet light, can cause burns when a person is overexposed to it. UV light carries more energy than visible light and can break bonds at the cellular level. It is the portion of the electromagnetic radiation originating from the sun that is harmful to living tissues. UV radiation is mostly blocked by the ozone layer, but a small fraction of UV rays from the sun can penetrate the atmosphere and cause sunburn or skin cancer.