Ultraviolet (UV) rays are considered the harmful rays coming from the sun and other artificial sources like tanning beds and welding tools. UV rays...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answ...
We all know that ultraviolet waves from the sun can do bad things to our bodies. Why on earth would anyone wear sunscreen outdoors but subject themselves to the same harmful rays in a tanning bed without any protection? Several of my friends who have been tanning for years have skin that ...
Whether on the slopes or at the shore, people are exposedto harmful amounts of the sun's skin-damaging ultraviolet(UV) rays. The quadratic functionD(x)=0.8x^2-17x+109 models the average time in which skin damage beginsfor burn-prone people. D(x), in minutes, where x is theUV ...
Harmful ultraviolet rays coming from sun are absorbed by View Solution Injurious ultraviolet radiations are mostly prevented from reaching the land surface as these are absorbed mostly by which one of the following? View Solution A considerable part of the harmful ultraviolet radiation of the sun ...
Skin inflammation caused due to overexposure to the harmful rays of the sun is known as sunburn. UVA and UVB are the ultraviolet rays that cause ma...
Like visible light, UV rays are energy waves released by the sun, only they cannot been seen. Some exposure (暴露) to those waves can do a body good. For example, ultraviolet B (UV-B) rays tell human skin to make vitamin A. Too much exposure can be harmful, though. Overexposure ...
This health problem is caused by the sun’s ultraviolet (UV) rays (紫外线). Recent scientific research found that nearly one in three people who die from this type of cancer often worked outdoors. The results, according to seven years of worldwide information, show that UV rays from the ...
Now listen to the news.{{/I}}Which statement was NOT mentioned about viewing an eclipse A.Sunglasses block out only a limited amount of the sun’s ultraviolet rays that can damage the eye.B.Sunglasses can only filter harmful rays during total solar eclipses at their greatest magnitude.C....
Most people know the harmful effects-such as premature aging and skin cancer-that ultraviolet(UV)rays can have on their skin.But many are not aware of the damage that UV rays can cause to the eyes.Possibly the most frightening aspect of UV damage is that it is cumulative;the negative ...
Ozone,a gas that appears in nature,is also produced by human activities,including by power plants and cars.The ozone in the upper atmosphere protects the Earth from the harmful ultraviolet rays (紫外线) of the sun.But ground-level ozone is harmful and pollutes the air we breathe. To examine...