Much progress in reducing atmospheric levels of lead pollution has resulted from___________ .
A)the elimination of leaded gasoline
B)the switch from lead to graphite in pencils
C)new types of lead scrubbers on smokestacks that removed lead from the power plant emissions
D)the development of new types of batteries that use lithium instead of lead

Question

Quizplus · Accepted Answer

The elimination of leaded gasoline, which was a major source of lead pollution, has resulted in significant reduction of atmospheric levels of lead pollution.

Much Progress in Reducing Atmospheric Levels of Lead Pollution Has