How much percent of iceberg is visible to us?

An iceberg is a large piece of freshwater ice that has broken off from a glacier or ice shelf and is floating in open water. The word iceberg comes from the Dutch term ijsberg which means “ice mountain”. Near about 90 percent of the total iceberg is inside the water and only the top of the ice mountain is visible. Glaciers form on land as the result of snow accumulation over thousands of years. Icebergs are created when the edge of a glacier advances into the ocean and breaks off in pieces. Icebergs are really white. This color is created by white light reflecting off tiny air bubbles trapped in the ice. There are also some antiseptic-blue overtones to it and a whole spectrum of green where the iceberg descends into the ocean. When iceberg ice melts quickly, the bubbles released from it make a sound like soda water fizzing. The melting rate of the iceberg is increasing due to global warming. If the entire ice melt in the polar regions the sea level will increase upto 7 meters.