Chemistry
Posted in Chemistry

OXYGEN (O2) PROPERTIES AND USES

876 ViewsOXYGEN (O2) PROPERTIES AND USES   Oxygen (O2) is an active, life-sustaining component of the atmosphere; making up 20% by…

SOURCE DOCUMENTS AND THEIR USES 1
Posted in Business Studies

SOURCE DOCUMENTS AND THEIR USES

8,100 ViewsSOURCE DOCUMENTS AND THEIR USES A source document is the original record of transaction.it states the basic facts of…