What gives Icebergs their Colors?

An iceberg can be many different colors, although most are blue.Once an iceberg has melted and refrozen several times, it will turn white because it has air trapped inside. Some icebergs in Antarctica are green because the ice shelves they come from have seawater frozen inside that contains yellow, brown and green colors. When the blue iceberg melts and exposes the yellowish organic matter, the iceberg sometimes looks green.

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