Streptomycin is also occasionally used to treat infections such as brucellosis and endocarditis. As for TB, when treating these infections, streptomycin should be used in combination with another antibiotic to help prevent resistance occuring.
DEFINITION of 'Oil Shale'. A type of sedimentary rock composed chiefly of a combination of silt and clay. Shale may contain kerogen, a type of organic matter that yields oil and gas.
literally rock oil it is a general term for crude oil and natural gas primary source of automotive fuels and lubricant oils petroleum is a complex mixture of hydrocarbons and paraffins in some areas and aromatics and cyclo paraffins in other areasn most oil fields oil and natural gas occur together gas being the top layer on crude oil under which may lie water one barrel of petroleum equals 5604 cubic feet of natural gas 1 45 barrels of liquefied natural gas lng or about one barrel of gas oil