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Biology, 18.05.2021 20:20 christingle2004

The percent change in the airborne lead concentration between 1980 and 2000 was closest to which of the following?
a.
10%
b.
18%
c.
57%
d.
72%
e.
93%

The percent change in the airborne lead concentration between 1980 and 2000 was closest to which of

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