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.
They are hardy ducks, nesting over a wide area from northern Alaska to the Dakotas and Nebraska. When the frosty weather comes they scatter across the country from California and Mexico to the Carolinas. The European or greenwing teal nests in the Aleutian Islands clear to Greenland.