28.07.23

16:21
Secrets of the Black Sea: is the Black Sea the youngest one in the world?

16:21
Secrets of the Black Sea: why is the Black Sea called ‘black’?

16:21
Secrets of the Black Sea:Why does the temperature vary so much at different depths of the Black Sea?

16:21
Secrets of the Black Sea: Is the Black Sea really more dead than alive?

16:21
Harvesting sunlight

16:21
68 meters and 16 tons each