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Pollution, Greenhouse Effect, Eutrophication, thinnning of ozone layer
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Pusat Tuisyen Teman Pintar ( Pro A )
Form 4 Biology Intensive Chapter 9
P. Pinang 2012
Perak 2012
Kedah 2012
Pahang 2012
SBP 2012
MRSM 2007
MRSM 2012