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How can sand that seems soft underfoot destroy ancient stone buildings over time?
Wiki User
∙ 11y ago
Most sand is composed of hard particles. Otherwise they would have been ground down, an blown away long ago.
So the sand that is left is harder than most of the other material around them. And may be lifted by the wind, and will abrade the softer structures around. Most of the sand is SiO2.
Wiki User
∙ 11y ago
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