Exposing the skin to the ultraviolet rays of the sun for a too long period.
It is also mainly caused through radiation of the sun.
When you forget to put sun screen on or you if don't put enough.
Ultraviolet (UV) waves cause sunburn.
Ultraviolet light causes sunburn
The causes of sunburn treatment are obviously having a sunburn. Over exposure to the sun will cause you to become sunburnt. It is important to put sunscreen on if you are planning to be exposed to the sun.
SUNBURN
Too much sun
Sun burn
Yes
Get to a doctor. Possible causes range from sunburn to cancer.
In general, it is ultraviolet light (the UV ray) that causes sunburn. Ultraviolet light is of a higher frequency than visible light, which means shorter wavelength, and higher energy. UV rays tend to do some tissue damage and burn skin causing sunburn.
An exposure substantial enough to result in a mild sunburn will be followed by melanin producing a tan that may last a few weeks.
My kin are not red, they're white.
Do you mean 'Which electromagnetic wave in the electromagnetic spectrum causes sunburn? The answer is Ultraviolet (UV), which is what is used in sunbeds and therefore damages and colours your skin cells.