Question

Explain the concept of an iceberg.

Answer 1

1. Icebergs are a large moving mass of ice chunks that break off from the glaciers.
2. Icebergs float in the ocean but are composed of frozen freshwater rather than saltwater.
3. 90 per cent of the iceberg is below the water's surface whereas only 10 per cent is above the surface of the water.
4. In very cold regions, the temperature over the sea is about −5^oC. Hence, the uppermost layer of the seawater freezes and forms glaciers or ice shelves.
5. The large pieces of ice that get broken off from such glaciers or ice−shelves form icebergs.