Q. How long is the Marriage License valid?A. A Marriage License is valid for 60 days, beginning the day after it is issued. Members of the armed forces who can prove they are on active duty at the time of applying for the Marriage License can obtain a Marriage License valid for 180 days.
Lesson Summary. UV light is one type of electromagnetic wave. Other electromagnetic waves include radio waves, microwaves, visible light, and X-rays. UV light is used by humans to produce vitamin D, but overexposure to UV light can damage DNA and cause painful sunburns, cataracts, and skin cancer.
When your skin is exposed to UV light, it reacts by producing a pigment called melanin to protect itself from the harmful rays. The melanin is what causes skin to have a darker appearance and thus a tan. Accelerators do just that. They increase the bodyâs production of melanin when exposed to UV light. It can be used in conjunction with a bronzer for an even faster tanning result.