The EGR (Exhaust Gas Recirculation) valve helps lower the carâs exhaust emissions (gases from the tailpipe). It recirculates the portion of the gasses coming out of the engine by putting in back into the intake manifold, where the engine can burn it again, thereby reducing the emissions.he EGR (Exhaust Gas Recirculation) valve helps lower the carâs exhaust emissions (gases from the tailpipe). It recirculates the portion of the gasses coming out of the engine by putting in back into the intake manifold, where the engine can burn it again, thereby reducing the emissions.
Indeed The Failure of Popular Sovereignty ofÃ­ ers a novel interpretation of the role of slavery in territorial expansion. Popular sovereignty, the author argues, became the South's true manifest destiny. The great strength of this work is its narrative.
Popular sovereignty. Popular sovereignty or the sovereignty of the people is the principle that the authority of the government is created and sustained by the consent of its people, who are the source of all political power.