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.
Another form of EMR, Ultraviolet radiation, can do a lot of long term damage to humans. UV is deadly to most forms of life. Of the three types of Ultraviolet radiation, UVA is most common and has the lowest energy. However, UVA penetrates into the deeper layers of the skin and contributes to skin aging and wrinkling. UVA radiation is also connected to forms of skin cancer.