Which automobile pollution control technology became universally adopted following the Clean Air Act Extension of 1970?
A. Secondary Air Injection
B. Exhaust Gas Recirculation (EGR)
C. Evaporate Emissions Control
D. Catalytic converter
Answer:D
Which automobile pollution control technology became universally adopted following the Clean Air Act Extension of 1970?
A. Secondary Air Injection B. Exhaust Gas Recirculation (EGR) C. Evaporate Emissions Control D. Catalytic converter