第三章测试
1.Which is the secondary Pollutant?( )
A:SO2 B:HNO3 C:NO D:CO
答案:B
2.PM10 and Ozone are secondary pollutants. ( )
A:对 B:错 3.Acid deposition is mainly caused by CO and hydrocarbons.( )
A:错 B:对 4.Halons is one kind of greenhouse gas. Also, Halons can damage ozone layer.( )
A:错 B:对 5.Photochemical smog is black, a mixture of primary pollutants and secondary pollutants.( )
A:错 B:对

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