9
3-savol
Yuqoridagi tajribani o`tkazgan o`quvchilar marmar bo`lakchasini, shuningdek,
toza (distillangan) suvga ham bir kechaga solib qo`yishdi.
O`quvchilar nima uchun ushbu
tajribani o`tkazishganini tushuntiring.
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4-savol
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