An epidemic occurs when an infectious disease spreads rapidly to many people. For example, in 2003, the severe acute respiratory syndrome (SARS) epidemic took the lives of nearly 800 people worldwide. disease outbreak happens when a disease occurs in greater numbers than expected in a community or region or during a season. An outbreak may occur in one community or even extend to several countries. It can last from days to years. Sometimes a single case of a contagious disease is considered an outbreak.
Quick Answer. Bitumen is primarily used to pave roads. It is a brown or black mixture of hydrocarbons, which is derived from petroleum. The consistency of bitumen varies from viscous to solid, and in its solid form, it is commonly known as asphalt. Continue Reading.
Hit is on the banks of the Euphrates river and is the site of an oil seep known locally as The Fountains Of Pitch. There asphalt was quarried for use as mortar between building stones as early as 6000 years ago.Asphalt was also used as a waterproofing agent for baths, pottery and boats (Purdy, 1957).2 The Babylonians caulked their ships with asphalt.3 In Mesopotamia around 4000 B.C., bitumen-a tarry crude-was used as caulking for ships, a setting for jewels and mosaics, and an adhesive to secure weapon handles.it is on the banks of the Euphrates river and is the site of an oil seep known locally as The Fountains Of Pitch. There asphalt was quarried for use as mortar between building stones as early as 6000 years ago.