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.
An oil spill refers to the release of a liquid-based petroleum hydrocarbon into the environment as a result of human activity. This introduction of destructive agents is a drastic form of environmental pollution that harbors numerous negative externalities and could precipitate the dissolvent of an entire ecosystem.