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Biology, 02.08.2019 22:30 JamierW2005
How can carbon dioxide be considered a pollutant when it is a natural component of air? a. carbon dioxide is considered a pollutant even though it is a natural component of air, because it is harmful to all living organisms. b. carbon dioxide is considered a pollutant when larger concentrations than normal are present in the air as a result of human activity. c. carbon dioxide is considered a pollutant, because it forms harmful chemicals when mixed with other pollutants in the air. d. carbon dioxide cannot be considered a pollutant under any circumstances.
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How can carbon dioxide be considered a pollutant when it is a natural component of air? a. carbon d...
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