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Volcanic ash
Volcanic ash consists of very fine rock and mineral particles less than 2 mm in diameter that are ejected from a volcanic vent. Ash is created when solid rock shatters and magma separates into minute ... > more -
Mount Kilimanjaro
Kilimanjaro is a mountain in northeastern Tanzania. Kilimanjaro is the tallest free-standing mountain rise in the world, rising 4600 meters (15,000 ft) from the base, and includes the highest peak in ... > more
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