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Why should it be any more costly to clean up the last 10 percent of polluted air than to clean up the first 90​ percent?
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Why should it be any more costly to clean up the last 10 percent of polluted air than to clean up the first 90​ percent?

User Vikas Verma
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1 Answer

3 votes

Answer:

Because the 90% that's left is more available to clean

User Alfons
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