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
Seto Inland Sea well as a number of smaller ones that pass between islands or connect the Seto Inland Sea to other seas or the Pacific. Almost 3,000 islands are located in the Seto Inland Sea, including the larger islands Awaji-shima and Shōdo-shima. Many of the smaller islands are uninhabited. Over 500 marine species are known to live in the Seto Inland Sea. Examples are the ayu, an amphidromous fish, the horseshoe crab, the finless porpoise, and the great white shark, which has occasionally attacked people in the Seto Inland Sea. In the past whales entered the sea to feed or breed, however