Carbon a streak on paper (hence its name, from the Greek verb "γράφειν" which means "to write"), while diamond is the hardest naturally occurring material known. Graphite is a good electrical conductor while diamond has a low electrical conductivity. Under normal conditions, diamond, carbon nanotubes, and graphene have the highest thermal conductivities of all known materials. All carbon allotropes are solids under normal conditions, with graphite being the most thermodynamically stable form at standard temperature and pressure. They are chemically resistant and require high temperature to react even with oxygen. The most common oxidation state of carbon in inorganic compounds is
Early 2000s recession late 2000s. Early 2000s recession The early 2000s recession was a decline in economic activity which mainly occurred in developed countries. The recession affected the European Union during 2000 and 2001 and the United States in 2002 and 2003. The UK, Canada and Australia avoided the recession, while Russia, a nation that did not experience prosperity during the 1990s, in fact began to recover from said situation. Japan's 1990s recession continued. This recession was predicted by economists, because the boom of the 1990s (accompanied by both low inflation and low unemployment) slowed in some parts of East Asia during the