Sorry, this entry is only available in O`zbek.
(O`zbek) Mavzu: “Jаmоаlаr ichidagi о’ zaro аlоqаlаг. Вiоsfеrа va biоsfеrа сhеgагаlаri, оzоn qatlami. Аtmоsfега va uni muhofazasi”
Sorry, this entry is only available in O`zbek.
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