MUNDARIJA
Kirish……............................……………………………..............................3
1. Adabiyotlar sharhi………........................................................................6
1.1. Atmosfera havosining ifloslanish darajasini o’rganish tarixi .......................... 6
2. Tadqiqot sharoitlari, obyekti va uslublari……………………............28
2.1 Tadqiqot sharoitlari……………............…………………...………................28
2.2. Tadqiqot obyektlari……...........…………………………………...................37
2.3. Tadqiqot uslublari……………............…………………………….................37
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