Seudónimo Seudónimo

21-06-2016
Health

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Name the three pollutants that have decreased the most since 1990.

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nathanhill100 nathanhill100

21-06-2016

They vary but lead, carbon monoxide, and sulfur dioxide are some of the most common ones that have decreased the most

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ajescoto99 ajescoto99

21-06-2016

Lead, carbon monoxide, and sulfur dioxide have decreased the most since 1990.

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