Final answer:
A burn caused by UV rays, like a sunburn, is classified as a first-degree burn. It affects the epidermis and can increase the risk of skin cancer with repeated exposure.
Step-by-step explanation:
The type of burn that is caused by UV rays, like those that cause sunburn, is considered to be a first-degree burn. Sunburn occurs when the outer layer of the skin, the epidermis, is damaged by UV light from the sun or tanning lamps. While a tan may be perceived as healthy, it actually indicates skin damage. Repeated exposure to UV rays and experiencing severe sunburns, especially during childhood or adolescence, can significantly increase the risk of developing skin cancer.