Background. Smallpox is an acute, contagious disease caused by the variola virus, a member of the genus Orthopoxvirus, in the Poxviridae family (see the image below).Virologists have speculated that it evolved from an African rodent poxvirus 10 millennia ago.ackground. Smallpox is an acute, contagious disease caused by the variola virus, a member of the genus Orthopoxvirus, in the Poxviridae family (see the image below).
Most of the time in Western Australia and the Middle East. There is pure talc in the European Alps and the Himalayas. 4 people found this useful. Edit. Share to: 1  The Five Major Parts of the Brain At its most basic, the brain controls the body. 2  Electrical impulses are sent along the nervous system to and from the brain that regulate all movement.
  Talc is used to make baby powder (and talcum powder)   Talc is a hydrous silicate mineral composed of magnesium (Mg), silicon and oxygen (SiO2, silica), and water. It â¦ s chemical formula is Mg3Si4O10(OH)2.here is no chemical formula for baking powder since it is mixture of two different compounds, typica â¦ lly a carbonate and a weak acid. *** TomMcD is correct-Scrimageour. 4 people found this useful.