PENCEMARAN UDARA.pptx

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   JELAS DILIHAT KESAN MENGISAPROKOK  KONSEP MUDAH DIFAHAMI  BERBENTUK EKSPERIMEN   KANDUNGAN DALAM ROKOK YANG PALING TERKENAL :   NIKOTIN   KARBONMONOKSIDA   TAR Setiap batang rokok yang dinyalakan akan mengeluarkan lebih 4 000 bahankimia  beracun yang membahayakan dan bolehmembawa maut. (asap rokok)  Kandungan dalam asap rokok  :   ARSENIC   CADMIUM   FORMALDEHID   SIANIDA HIDROGEN   AMONIS  11 Perkara Semua Orang Mesti Tahu Tentang RokokTak SahNAMA BEBERAPA BAHAN KIMIA
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