An Aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom which is bonded to a hydrogen atom and double-bonded to an oxygen atom (chemical formula O=CH-), is called the aldehyde group.
Berchtesgaden-a town in Bavaria The town of Berchtesgaden is located near Hitler's Eagle's Nest (Kehlsteinhaus) and can be easily reached by train; there are several hotels and it is an inexpensive place for tourists to stay overnight.
German Cockroaches. The German Cockroach is the most common of all roaches found in America. The German roach is most likely to infest your home. Unlike the American Roach, the German variety prefers to nest indoors. They cannot survive outside for prolonged periods. They are hitchhikers and are often introduced into homes in luggage, used clothing and second-hand furniture.