Magsaliksik ng 10 isyung pangkapaligiran at bigyan paliwanag ang bawat isyu.
patulong po please
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Magsaliksik ng 10 isyung pangkapaligiran at bigyan paliwanag ang bawat isyu.
patulong po please
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Pakiclick nalang po ang mga picture. Pakitignan nalang ang link sa baba. Salamat.
6. Unti-unting pagkaubos ng bilang ng iilang hayop.
7. Green House Effect