In, moderation, uv light is a benefactor that helps synthesize certain vitamins. However, the level of uv humans have adapted to use is being surpassed because of ozone depletion, which lets more highly radioactive light into our atmosphere. This, coupled with excessive outdoor activity (not like a few hours, but something like most of the day) may cause cancer and other ailments.
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Midday
yes
ozone layer protects from uv raysThe integumentary system protects living skin from exposure to UV rays. This system, which includes the skin, helps the body regulate temperature, protect against dehydration and removes waste from the body.
UV, or "ultraviolet" radiation from the Sun. UV radiation has a higher frequency and shorter wavelength than visible light does, and carries more energy.
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Yes, humans can get melanoma's, bacteria can die, etc. etc. UV can also do good, for exampe, the energie needed for photosyntesis comes from UV.
UV headlights can be used to destroy bacteria and other microbes, which is obviously a benefit. You can be sure you are driving on newly sterilized road. As UV light originally comes from the sun, it can be used in the good fight against vampires.
The ozone in the atmosphere is good ozone. It is there because of the UV. The UV created the ozone and they are responsible for it's destruction.
Along with bad, there are some goods of UV as well. It is the primary reason for the creation of Ozone layer.
Intense UV rays enter through ozone hole. The cause the planktons to die. This then causes global warming.
The ozone is good at stratosphere. It protects us from harmful UV rays.
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UV is commonly broken up into three rough groupings called UV-A, UV-B, and UV-C. Oxygen and nitrogen absorb UV-C and break apart. Some of the oxygen forms ozone. Ozone absorbs UV-C and some UV-B and breaks apart. Ozone also absorbs UV-B and reradiates it randomly. UV-A (the sutff good for tanning) is pretty much just passed thru to the surface of the Earth. So some UV is blocked by oxygen (UV-C), just not any of UV-B, which directly strikes our DNA since we are largely transparent to UV-B and DNA is not.
UV tattoo is a good option for those seeking more subtle tattoo, because it is visible only in ultraviolet light. Depending on ink, it can be nearly invisible on non-UV environments. Especially raver-subculture uses UV-tattoos.
Good ozone is there in stratosphere. It protects the earth from UV rays.