4. Give reason for the following: (a) Icebergs floating in sea water are dangerous for ships.
4. Give reason for the following:
(a) Icebergs floating in sea water are dangerous for ships.
It is found that an iceberg floats in sea water with 90% of its volume below water and 10% of its volume above sea water. Icebergs are extremely dangerous for shipping as underwater ice can hit the ship and sink it.
The reason is as follows
Icebergs are made of ice, which is very dense. They are constructional hazards to ships which may encounter them. Icebergs float half way into the water, meaning they are also well anchored. This means that if a ship will run into an Iceberg, the momentum of the crash would shifted towards it, causing damage