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.
Geography of the African Union
The AU presently has an area of 29,922,059 km² (18,592,705 mi²), with 24,165 km² (15,015 mi²) of coastline. The vast majority of this area is on continental Africa, while the only significant territory off the mainland is the island of Madagascar (the world's fourth largest), accounting for slightly less than 2% of the total.