Task: Text Categorization
Input (English): Two species of bullhead fish introduced into this body of water in the 1960s died out within thirty years due to changing salinity, which also encourage the growth of saxaul plants on its shores. Vozrozhdeniya Island in this body of water was used as a research station for (*) biological weapons. The delta between Muynak and Nukus on the southern coast of this sea was a center for muskrat trapping, one source of employment for the Karakalpak people. The Qaraqum Canal  diverted water to irrigate cotton fields that should have flowed into this sea, which could no longer be replenished by the Syr Darya. For 10 points, name this sea once found between Kazakhstan and Uzbekistan.
Output (English): Social Science