An iceberg is a large piece of ice that floats in water. It may have been broken away from a glaciers or ice-shelf. The word iceberg probably means ice-hill. The tallest iceberg ever measured was 168 mts high.
Icebergs on Baffin Bay, the arm of the North Atlantic Ocean
About 10,000 to 15,000 new icebergs are formed every year. The process of breaking away is called “Calving”