Suvning ifloslanishi va uni tozalash usullari. 7- sinf
Taqdimotlar | Biologiya
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Mualliflik huquqi buzilgan holatdashikoyat qiling!
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Mahsulot tavsifi
This product discusses water pollution and its cleaning methods for 7th grade students. Topics include causes of water pollution, types of water pollution, and industrial contaminants affecting water quality
Joker 🃏
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