Multiple choice general knowledge

Glacial ice often appears ----when it has become very dense

  1. red

  2. green

  3. yellow

  4. blue
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When glacial ice becomes very dense through compression, it often appears blue. This occurs because the dense ice crystals absorb longer wavelengths of light (red, orange) while scattering blue light more effectively.

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