For example, in the fraction 3/4, the numerator, 3, tells us that the fraction represents 3 equal parts, and the denominator, 4, tells us that 4 parts make up a whole. The picture to the right illustrates 3 4 {\displaystyle {\tfrac {3}{4}}} or Â¾ of a cake.
The Causes of Sunburn Blisters. Sunburn blisters are a result of overexposure to the UVA and UVB rays in the sun. â¢ UVA. These harmful rays penetrate deep into the bottom skin layers and damage the production of new skin cells. High doses of UVA rays will cause sunburn blisters.
On more than one occasion my skin was affected by serious sunburns. I had fever and I was in a lot of pain, but I have never experienced swelling due to sunburn. But, a thing like this can happen in the hardest sunburn cases. You see ultraviolet lights that cause sunburns actually hurt our skin cells. Our immune system sees this as a threat and reacts. The swelling is one of the signs of inflammation. The mechanism of this immune system reaction is very complex.