Caspian Sea Trivia Questions

These five nations border the Caspian, making it a geopolitically complex region with disputes over resource rights.

The Dead Sea is far saltier; the Caspian's salinity is about one-third that of typical oceans, varying from near-fresh in the north to brackish in the south.

It is the world's largest inland body of water, classified as a lake because it has no direct ocean outlet, though its salinity and size give it a 'sea' name.

It has no natural connection to any ocean; the Volga River links it to the Caspian but leads to the inland Baltic Sea, not the Arctic.

The Caspian Sea sits about 28 meters below global sea level, making it one of the lowest-lying bodies of water on Earth.

It has been declining since the 1990s due to climate change, damming, and evaporation, dropping nearly 1.5 meters in recent decades.

Over 300 mud volcanoes exist on the Caspian's islands, including the world's largest, which sometimes erupt with flammable methane.

It hosts over 90% of global sturgeon, producing the majority of the world's caviar, though overfishing has severely reduced stocks.