Necrosis is the name given to unprogrammed death of living tissue. The cause of necrosis can be from a great range of possibilities such as frost-bite[?], injury, infection, chemical agents loss of nutrient supply ......etc.
... Atlantic Ocean, it borders Uruguay, Argentina, Paraguay, Bolivia, Peru, Colombia, Venezuela, Guyana, Suriname and French Guiana. Named after brazilwood[?], a local tree, ...