Muka Hadapan‎ > ‎Sains Form 2‎ > ‎

Tugasan

diposting pada tanggal 14 Okt 2012 20.31 oleh IBRAHIM BIN KADRI

·    explain what air pollution is,

·    list examples of air pollutants,

·    list the sources of air pollutants,

·    describe the effects of air pollution,

·    Explain the steps needed to prevent and control air pollution.

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