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Sand - Wikipedia
Sand | Beach, Dune, Desert | Britannica
Sand Definition & Meaning - Merriam-Webster
What is Sand - Overview and Geology - Sandatlas
What Is Sand? What Is It Made Of? - Science Notes and Projects
What is Sand Made of? History. | Saltwater Science - Nature
8 Granular Facts About Sand - Mental Floss
What is Sand? Composition, Colors and Various Types of Sand
Sand Types - Sandatlas
Sand - New World Encyclopedia