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Stack #4600984
| term | definition |
|---|---|
| crater | a bowl-like hole that forms when rock explodes from a volcano during an eruption |
| earthquake | vibrations within earth caused by the sudden release of energy, usually as a result of the movement of rocks along a fault. |
| geyser | A rare hot spring that periodically erupts, forcefully ejecting jets of hot water and steam into the air due to built-up underground pressure from geothermal heat. |
| hot spring | a natural spring where groundwater, heated by the earth's internal energy, emerges onto the surface at a temperature substantially higher than the surrounding air temperature. |
| volcano | a land form, usually cone shaped, produced by a collection of erupted materials around a vent, or an opening on the surface of earth and through which gas and erupted materials pass. |
| fossil | preserved remains of an organism, usually from prehistoric times. |