Environment of Azerbaijan
The Caspian Sea is the largest lake on Earth by both area and volume, with a surface area of 371,000 square kilometres (143,244 mi²) and a volume of 78,200 cubic kilometres (18,761 mi³). It is a landlocked endorheic body of water and lies between Asia and Europe. It has a maximum depth of about . It is called a sea because when the Romans discovered it they tasted the water and found it to be salty. It has a salinity of approximately 1.2 percent, about a third the salinity of sea water.
East Thrace
East Thrace has an area of 23,764 km (3 percent of the country), slightly smaller than Sardinia, and a population of about 11 million people or about 14 percent of the total population (in 2015); the population density is around 430 people/km, compared to about 80 people/km for Asiatic Turkey, which is also called Anatolia or Asia Minor. However, densities are skewed by the metropolis of Istanbul. The two continents are separated by the Dardanelles, the Bosphorus (collectively known as the Turkish Straits) and the Sea of Marmara, a route of about 361 km. The southernmost part of Eastern Thrace is called the Gallipoli peninsula. European Turkey is bordered on the west by Greece for 212 km and on the north by Bulgaria for 269 km, with the Aegean Sea to the south-west and the Black Sea to the north-east.