The greatest progress in reducing atmospheric levels of lead pollution resulted from
A) the elimination of leaded gas.
B) the switch from lead to graphite in pencils.
C) the development of new types of batteries that use lithium instead of lead.
D) new types of lead scrubbers on smokestacks that removed lead from the air.
A
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National Forests and Parks across the United States, from the Rockies to the Smokies, operate under a view of natural resource use built on ________ and the idea that natural resources can be used responsibly
A) preservation B) conservation C) deforestation D) modernization E) economic development
Would you expect to find a cA air mass in the Southern Hemisphere? Explain
What will be an ideal response?
Biochemical and organic rocks form from materials produced by living organisms.
a. true b. false
What does a map's scale tell us? List two ways to portray map scale
What will be an ideal response?