Leaded petrol used to be the primary source of air-borne lead emission. This problem has been overcome by

Leaded petrol used to be the primary source of air-borne lead emission

1.	Leaded petrol used to be the primary source of air-borne lead emission. This problem has been overcome by
A.	using TEL loaded petrol
B.	using ethanol-mixed petrol
C.	using unleaded petrol
D.	Using MTBE loaded petrol
Answer» D. Using MTBE loaded petrol

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Leaded petrol used to be the primary source of air-borne lead emission. This problem has been overcome by

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