1001 Space Earth Nature History Human World Science and Technology Chemistry Materials Force and Energy Heat and Light Electricity and Magnetism Industry Machines Electronics and Computers Cars and Trucks Railways Ships Aircraft Fishing and Agriculture Undersea Exploration

Choose a Page:What is an articulated truck?Which was the first mass-produced car?How are car bodies made?When was the first car built?How do robots make cars?Which country produces the most cars?How does a tipper truck work?What is an engine management system?What are the alternatives to petro...*What does a catalytic converter do?*What is the most expensive road car? What does a catalytic converter do? Pollution from car fumes A catalytic converter removes poisonous gases from a car's exhaust system. The main pollutants are carbon monoxide, nitrogen oxides, and unburned fuel. The converter changes these to harmless carbon dioxide, nitrogen, and water.   Previous: Back Book: 1001 Section: Science and Technology Chapter: Cars and Trucks