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प्रश्न
Distinguish between the following pair of terms associated with vulcanicity:
Cinder Cone and Composite Cone
उत्तर १
| Cinder Cone | Composite Cone |
| It is made of small pieces and fragments of solidified lava and ash. | It is made of layers of cinders and ash, alternating with layers of lava. |
उत्तर २
Cinder Cone: Volcanic cones are called Cinder cones when the material erupted consists of cinder and other solid particles. These cones have steep slopes because they consist of particles of large size.
Composite Cone: The volcanoes which start as cinder cone and grown into large volcanic hills with alternating layers of lava and ash are called Composite cones. These cones are formed due to an explosive eruption followed by eruption of lava. Explosive eruption leads to the formation of a layer of ash while lava solidifies as a sheet on the layer of ash. This is followed by a quiet period and then the process gets repeated.
संबंधित प्रश्न
What is the magma chamber of a volcano?
What is‘magma’?
Distinguish between the following pair of terms associated with vulcanicity:
Acidic Lava and Basic Lava
Distinguish between the following pair of terms associated with vulcanicity:
Geysers and Hot Springs
Distinguish between the following pairs of terms associated with the crustal movement of the earth:
Tilted Block mountains and Lifted Block mountains
Answer the following:
Earthquakes are common in the belt of young fold mountains.
Name one useful feature of vulcanicity other than soil fertility.
What are tectonic movements? How are these classified?
______ belt is known as the “Ring of Fire”.
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.
