Geyser
Context
A natural hot spring that intermittently spouts water and steam into the air
Explanation
Geysers are rare natural phenomena occurring when underground water is heated by geothermal forces and ejected to the surface, often accompanied by steam.
Applications
Geysers are studied for understanding geothermal activity and the Earth's geology.
They are major tourist attractions in regions like Yellowstone and Iceland.
Geysers contribute to the formation of unique ecosystems around them.