Some had turned gray to reflect and survive in the strong light and oppressive ultraviolet rays.
Increased solar activity will allow more ultraviolet rays to reach earth, that can warm the relatively colder upper atmosphere.
The sun's ultraviolet rays can also stimulate the bone marrow produce red blood cells, improve blood function, in order to prevent anemia.
For instance, plastics have a known weakness to ultraviolet rays from the sun, and so long exposure might represent an issue.
One is black carbon and the other is ozone, which is vital for blocking ultraviolet rays in the stratosphere but hazardous in the bits of the atmosphere where plants live and people have to breathe.
What are infrared and ultraviolet rays?
In order of decreasing wavelength (distance between successive wave crests), electromagnetic radiation consists of radio waves, infrared rays, visible light, ultraviolet rays, X rays, and gamma rays.
Researchers believe that these growths are caused in part by long-term exposure to the ultraviolet rays contained in sunlight.
The strong ultraviolet rays of the plateau sun shone on their heads as they walked towards a small town called Gaomiaozi.
We do know that it was developed by emitting ultraviolet rays at CPS in a carbon hydrogen solvent in order to polymerize part of the CPS to make a polysilane.
Children should wear glasses that filter out ultraviolet rays.
Solar light can send off ultraviolet rays, just like the sun does.
As Lesley Alderman reports in this week's Patient Money column, snow reflects nearly 80 percent of the sun's rays. That means more harmful ultraviolet rays are directed into your eyes.
The biggest difference between men's and women's clothes is that men's clothes cover their bodies meticulously. Only one face and two hands can absorb the ultraviolet rays of the sun. The trend of women's clothes is to seek less cover, the better.
A suncream provides adequate protection against harmful ultraviolet rays.
The boys could not be exposed to any ultraviolet rays, or they ran the risk of almost certain skin cancer.
Summer beauty is not too hot, looking up at the sun, will feel the pain in the eyes, and so on bowing head will feel the golden flowers, feel dizzy, this is the damage of ultraviolet rays to the eyes, so I hate purple most.
The ozone layer protects life on Earth from harmful ultraviolet rays.
After that is the transition region a few hundred to a few thousand miles or kilometers thick, which is heated by the corona above it and sheds most of its light as ultraviolet rays.
"as ultraviolet rays can cause sunburn and even skin cancer, a hippo's sweat therefore protects its skin like a sunscreen."
The sun's heat and ultraviolet rays will kill anything inside.
ultraviolet rays
The ionization in the upper atmosphere is caused by ultraviolet rays form the sun.
In fact, many colored glasses are not sunglasses. They can't block ultraviolet rays. Wearing these colored glasses in the sun can hurt the eyes.
Taking advantage of Cangshan to block ultraviolet rays, rented a mountain bike and began climbing eight movie and television cities in Tianlong.
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