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प्रश्न
Distinguish between the following pair of terms associated with vulcanicity:
Geysers and Hot Springs
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उत्तर १
| Geysers | Hot Springs |
| In a geyser, hot water and steam are thrown out at intervals in the form of a fountain. There is an old faithful geyser which erupts out exactly in a one-hour interval, these are about 100 geysers. | In a hot spring, the heated water flows out continuously without any eruptive activity such hot springs are common in Yellow stone park U.S.A. Badrinath and Mani Karan in India. These hot springs are very healthy for a bath. |
उत्तर २
Hot Springs :
- It is a stream of hot water issuing from the ground. The hot water flows unobstructed quietly and continuously.
- Hot springs are common where joints fissures and porous beds allow the free exit of water to the surface. The water becomes hot when it comes into contact with the heated rocks or upper heated steam lying deep into the earth’s crust.
Geysers :
- It is a hot spring which at regular or irregular intervals throws a jet of hot water and steam into the air.
- In the case of geyser, the fissure or vent connecting the source of hot water to the surface is very narrow which greatly increases the pressure and temperature of the hot water and so when water comes out it rises high into the air.
संबंधित प्रश्न
Distinguish between the following pair of terms associated with vulcanicity:
Lava and Magma
Answer the following:
Some volcanoes erupt explosively.
Answer the following:
Some volcanoes develop parasitic cones.
Answer the following:
Hot springs are common in volcanic regions.
Answer the following:
Earthquakes are common in the belt of young fold mountains.
Give reasons for the following:
Earth’s movements have modified the Earth’s surface.
Out of the following words write down the four that are connected with volcanic activity.
Karst, crater, drumlin, stalactites, gully, pot holes, ash, basalt, swallow holes, dyke, domes, bluffs.
Assertion (A): The Pacific Ocean includes two thirds of the world’s volcanoes.
Reason (R): The boundary along the Eastern and Western coast areas of the Pacific Ocean is known as the Pacific Ring of Fire.
The upper part of the earth’s crust ______.
Choose the odd one
Vesuvius, Stromboli, St.Helena, Etna.
