A species of seal indigenous to this body of water migrates every winter to its frozen north or to its largest island of Ogurja (15[1])Ada [oh-GUR-juh AY-duh] to give birth. A city on this body of water has the world’s highest levels of natural background (-5[1])radiation and names a 1971 treaty on wetland conservation. Expanding tea plantations on this body of water’s southern coast have threatened the protected Hyrcanian rainforest, where the Jungle Movement briefly established a socialist state (-5[1])centered on the city of Rasht. The first offshore (*) oil well was built near this body of water’s Absheron Peninsula. Astrakhan is the largest city in the Volga Delta that drains into this brackish endorheic [en-doh-REE-ik] basin, whose large oil reserves are exported west by pipeline from Baku. For 10 points, what largest lake in the world borders Russia, Iran, and Azerbaijan? (10[1]0[1])■END■