If your skin is exposed to the sun too much then the harmful UV rays can cause skin damage, leaving it dry and scaly. This is because the UV rays penetrate below the top layer of the skin and affect the collagen which is responsible for the upkeep of the skin. This leads to wrinkles, sagging and also dryness.
A JPG file consists of a sequence of segments, each beginning with a marker, each of which begins with a 0xFF byte followed by a byte indicating what kind of marker it is. Some markers consist of just those two bytes; others are followed by two bytes indicating the length of marker-specific payload data that follows.
2) JPEG (usually pronounced JAY-pehg) is also a term for any graphic image file produced by using a JPEG standard. A JPEG file is created by choosing from a range of compression qualities (actually, from one of a suite of compression algorithms). When you create a JPEG or convert an image from another format to a JPEG, you are asked to specify the quality of image you want. Since the highest quality results in the largest file, you can make a trade-off between image quality and file size. Formally, the JPEG file format is specified in ISO standard 10918.