Multiple Choice
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
Correct Answer:
Verified
Correct Answer:
Verified
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