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Types of Volcanoes: Characteristics and Definitions Video Lecture | Geography for UPSC CSE

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FAQs on Types of Volcanoes: Characteristics and Definitions Video Lecture - Geography for UPSC CSE

1. What are the different types of volcanoes?
Ans. There are three main types of volcanoes: shield volcanoes, composite volcanoes (also known as stratovolcanoes), and cinder cone volcanoes.
2. What are the characteristics of shield volcanoes?
Ans. Shield volcanoes are characterized by their broad, gently sloping sides and low profiles. They are formed by the eruption of low-viscosity lava that flows easily and spreads out in thin layers.
3. What are the characteristics of composite volcanoes?
Ans. Composite volcanoes are tall and steep with a symmetrical cone shape. They are created by alternating eruptions of both lava and volcanic ash, resulting in layers of hardened lava, ash, and volcanic debris.
4. What are the characteristics of cinder cone volcanoes?
Ans. Cinder cone volcanoes are small and steep with a conical shape. They are formed by explosive eruptions that eject small fragments of lava, ash, and rock called cinders, which accumulate around the vent.
5. How do the types of volcanic eruptions differ?
Ans. There are two main types of volcanic eruptions: explosive and effusive. Explosive eruptions occur when highly viscous magma traps gases, causing pressure to build up and leading to violent explosions. Effusive eruptions, on the other hand, involve the relatively gentle flow of low-viscosity lava.
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