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Why does the author mention that 'The green ice portion was textured by seawater erosion'?

Understand the Problem

The question is asking about the reasoning behind the author's mention of the green ice portion being textured by seawater erosion. It aims to clarify how this detail supports an idea regarding the characteristics of green ice in the context of its formation and properties.

Answer

To support the idea that green ice was the bottom layer formed from seawater.

The mention of 'The green ice portion was textured by seawater erosion' supports the idea that the green ice had been the bottom layer formed from seawater, which was exposed after the iceberg capsized.

More Information

This explanation aligns with the scientific observation that green iceberg formation involves a two-layer structure where green ice is exposed when the iceberg capsizes.