Mollusks create mother of pearl to protect themselves. In addition to forming part of the shell, it also insulates mollusks from bacterial infection and parasites. Another function of this substance is to reduce irritation or damage from material such as sand or grit that drifts into the shell.
The Ring of Honor is an American professional wrestling event that showcases five main events annually, and a number of internet pay-per-view live events. Most of the events may be purchased and viewed in DVD.
Definition of the Ring of Fire. The Ring of Fire refers to a geographical area of high volcanic and seismic activity around the edges of the Pacific Ocean. It may be a famous song by country legend Johnny Cash, but to geologists, volcanologists, and seismologists, the Ring of Fire is a vast geographic area rich in tectonic activity.