Negative or positive

Hello po tanong ko lang po kung positive po ba to o negative?? 1 line lang ksi sa 3 pt's , ito merong light line ..

Negative or positive
17 Replies
undefined profile icon
Magsulat ng reply

evaporation line pa po yan... although try niyo a few days after ulit. Better kung magtake ka po tas yung isang pt tubig lang ilagay para may basis ka po ng comparison.