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.
JPEG is a lossy compression technique for color images. Although it can reduce files sizes to about 5% of their normal size, some detail is lost in the compression.