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Slightly oversimplified:
- UVA, helps skin make vitamin D, suntans
- UVB, sunburns
- UVC, increases cancer risk
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∙ 9y ago
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What type of radiation enters earths atmosphere?
The UV radiation that reaches the Earth’s surface is mostly UVA and some UVB. Almost half the daytime total of the more harmful UVB radiation is received between the hours of 10 a.m. and 4 p.m. Even on a cloudy day, you can be sunburned by UVB radiation.
What types of radiation can enter earths atmosphere?
The UV radiation that reaches the Earth’s surface is mostly UVA and some UVB. Almost half the daytime total of the more harmful UVB radiation is received between the hours of 10 a.m. and 4 p.m. Even on a cloudy day, you can be sunburned by UVB radiation.
Which are more energetic photons of UV A radiation or photons of UV B radiation?
UVB
Is uv radiation harmful?
UV radiation is very harmful in many ways, first off they are invisible rays that come from the sun, UV radiation is made of ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC). These rays burn skin and cause cancer. UVB and UVC penetrate the ozone layer. UVA and UVB cause skin cancer, for this reason, sunscreens are recommended that block UVA and UVB.
What are 3 types of ultra violet radiation?
UVC UVB UVA
What does uva and uvb mean?
Ultra violet class A and B radiation
What is the high-frequency radiation called that gives us sunburn?
UVA and UVB
A sunburn is caused by overexposure to what kind of ray?
One type of radiation that CAN give you sunburn is UV radiation
What is ultra violet radiation given off by?
UV radiation is given off by the sun. UV radiation is a broad spectrum that consists of UVA, UVB and UVC radiation. The planets atmosphere protects us from harmful UVA and 90% UVB radiation, leaving unharmful UVC radiation to pass through the atmosphere. However, due to the increasing number of greenhouse gases, Ozone is being broken down a lot faster than it should, which in turn means that more harmful UV radiation can come through, which means that we are at a higher risk of cancer.
What is one reason the ozone hole is dangerous to humans?
Dangers of the ozone holeOzone protects us from the dangerous Ultraviolet radiation from the sun (UVB). This UVB causes skin cancers and cataracts in humans, and damage to some crops, including rice.
What type of electromagnetic radiation can give you sunburn?
The main form of electromagnetic radiation that give you a sunburn is Ultra Violet (UV) radiation. (UV rays) Ultra-violet is furthered graded to UVa UVb and UVc. UVa - is necessary for the production of Vitamin D UVb - is required for certain anti-cancer process in the skin. UVc - has no beneficial function and is the most energetic and responsible for the majority of the sun burn.
Does a sea turtle need light?
Yes. All turtles need UVA and UVB radiation from the sun to process vitamins and minerals in their bodies.
