Which body of water in central asia used to be the fourth-largest lake in the world but is now almost completely dried up? a. lake baikal b. the aral sea c. lake balkhash d. the caspian sea

The answer would be B: The Aral Sea. This sea has been shrinking since the 1960's due to the rivers it feeds into, which were diverted by Soviet irrigation projects. The eastern basin has completely dried up and is known as the Aralkum Desert. The shrinking of this Sea is known to many to be one of the planet's worst environmental disasters.
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