EARTH SCIENCE
VOLCANOES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ash
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Lapilli
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Lava Block
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Lava Bomb
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Detailed explanation-1: -The smallest pyroclastic material is volcanic ash. This ash is a type of tephra that is very fine is less than 2 mm in diameter. This ash usually forms as a result of an explosion of the gases in stiff magma and the walls of the gas bubbles once they expand rapidly.
Detailed explanation-2: -Pyroclastic flows can be extremely destructive and deadly because of their high temperature and mobility. For example, during the 1902 eruption of Mont Pelee in Martinique (West Indies), a pyroclastic flow (also known as a “nuee ardente”) demolished the coastal city of St. Pierre, killing nearly 30, 000 inhabitants.
Detailed explanation-3: -Mount St. Helens, Washington. Mount Kilauea, Hawaii. The world’s most active volcanic mass, Kilauea is home to many frequent eruptions. Mayon Volcano, The Philippines. Redoubt Volcano, Alaska. Mount Pinatubo, The Philippines. Mount Agung, Bali. Mount Fuji, Japan. Popocatépetl, Mexico. More items