Question

What is done to prevent ships from sinking or floating in sea?Name it
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Answer 1

Answer:

A double-hull design is a hull within a hull, like a tire with an inner tube. Unfortunately, accidents do happen. In order to prevent cruise ships from sinking should something penetrate the first two lines of defense, vertical watertight dividers known as bulkheads are installed throughout the interior of the hull.

Answer 2

because of its body design which contains lot of air