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sarinawhitaker
24.04.2020 •
Biology
Which is of the following statements about carbon dioxide is TRUE?
A. It is the most potent greenhouse gas.
B.It has not been above 300 ppm in the past 800,000 years.
C. It has recently increased at a rate similar to other periods in history.
D.It is the most abundant greenhouse gas.
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Ответ:
Tobacco Smoke
and
Combustion from Industry.~ Almost all of the common air pollutants can be produced by industrial processes.
hope i helped :]