A catalytic converter is a device that uses a catalyst to convert three harmful compounds in car exhaust into harmless compounds. The three harmful compounds are: 1  Hydrocarbons (in the form of unburned gasoline).
Answers.comÂ® is making the world better one answer at a time. Slavery ended permanently in Louisiana in 1865. The end of slavery was a direct result of the passage of the Thirteenth Amendment to the Constitution.
SLAVERY. Texas was the last frontier of slavery in the United States. In fewer than fifty years, from 1821 to 1865, the Peculiar Institution, as Southerners called it, spread over the eastern two-fifths of the state. The rate of growth accelerated rapidly during the 1840s and 1850s.