Geography of Uzbekistan Kazakhstan, also yielded about 60% of the total volume of Central Asia's emissions of harmful substances into the atmosphere. Because automobiles are relatively scarce, automotive exhaust is a problem only in Tashkent and Farghona. The reduction of water in Uzbekistan has resulted in soil degradation, and the spread of the salt from the evaporated Aral Sea has contaminated the surrounding soil. The soil has lost much of its water due to the increased surface irrigation. The irrigation of farmlands with water from the Aral Sea has resulted in increased salinization of the soil, causing the farmland to be less productive
History of Kazakhstan numeracy of Kazakhs was still higher than other Central Asian nations, which are nowadays referred to as Kyrgyzstan, Turkmenistan and Uzbekistan. There could be several reasons for this striking early numeracy level. First and foremost, the settler share could explain part of this, albeit Russians were a minority in the Kazakh steppe. Secondly, the relatively good nutritional situation in Kazakhstan. Protein malnutrition that plagued many other populations of Central Asian nations was absent in Kazakhstan. Moreover, Russian settlers of the 1870s and 1880s might have simulated so-called contact learning. Kazakhs started to invest more in human capital because they observed