Maktablar uchun suv aylanishi - Water Cycle for Schools, Uzbek (PDF)

 Maktablar uchun suv aylanishi - Water Cycle for Schools, Uzbek (PDF) Maktablar uchun suv aylanishi - Water Cycle for Schools, Uzbek (PDF)

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AQSh Geologiya xizmati va Birlashgan Millatlar Tashkilotining Oziq-ovqat va qishloq xo'jaligi tashkiloti (FAO) maktablar uchun suv aylanishining sxemasini ishlab chiqdi.

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