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Water samples. Water sinks. The students are ready for walkıng ın the school. Water sınks. old. new. Samples are taken TO ANALYSE. SAMPLE FROM CARBOY. SAMPLE FROM NEW WATER SINK. - PowerPoint PPT Presentation
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WATER SAMPLESWATER SİNKS
THE STUDENTS ARE READY FOR WALKING IN THE SCHOOL
WATER SINKS
OLD NEW
SAMPLES ARE TAKEN TO ANALYSE
SAMPLE FROM CARBOY
SAMPLE FROM NEW WATER SINK
