UV And Ozone Layer Flashcards
1
Q
What is ozone?
A
Part of the earth’s atmosphere that absorbs UV radiation
2
Q
What is UV radiation?
A
A form of high frequency radiation that comes from the sun
3
Q
What is the sun index?
A
A number between 1-10 that indicates how long you can spend in the sun before you burn
4
Q
What is the SPF?
A
Sun Protection Factor- a measure of how long you are protected from UV radiation
5
Q
Why is UV dangerous?
A
UV damages DNA. This can build up over any years and lead to skin cancer
6
Q
That are the three types of UV?
A
- UVA
- UVB
- UVC
7
Q
What are CFCs?
A
Chlorofluorocarbons
8
Q
How is the time you can stay in the sun with SPF sunscreen calculated?
A
SPF X safe time given by sun index
9
Q
What is melanin?
A
The brown pigment in the skin that absorbs UV radiation and prevents it from entering the body cells
