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| a sudden calamity, especially one causing widespread damage or suffering. |
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| in a state of temporary inactivity or rest, suspended or slowed down. |
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| the process my which material from the earth's surface is worn away by forces such as glacier, wind and waves. |
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| any volcano that is actively releasing lava and or gases. |
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| molten rock erupting from a volcano or volcanic fissure. |
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| the soft residue that remains after combustion. |
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| the hot, liquified matter beneath the earths surface that erupts from volcanos and cools to produce igneous rock. |
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| light, porous hardened lava, powdered or whole, used as an abrasive and polishing agent. |
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| the part with the highest elevation, especially a mountain peak. |
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| an opening which allows entrance, passage, or exit of a gas or vapor especially of air or smoke. |
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| a bowl shaped depression with a raised rim, such as the mouth of a volcano or geyser, or the circular depressions on the surface of the moon. |
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