BPSC (Bihar) Exam > BPSC (Bihar) Videos > Geography for State PSC Exams > Vulcanism and Earthquakes (Physical and Human Geography)
Vulcanism and Earthquakes (Physical and Human Geography) Video Lecture | Geography for State PSC Exams - BPSC (Bihar)
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FAQs on Vulcanism and Earthquakes (Physical and Human Geography) Video Lecture - Geography for State PSC Exams - BPSC (Bihar)
| 1. What causes volcanic eruptions? |  |
Ans. Volcanic eruptions occur when there is a buildup of pressure beneath the Earth's surface due to the movement of tectonic plates. This pressure causes molten rock, known as magma, to rise to the surface and erupt as lava, ash, and gases.
| 2. How do volcanoes form? | |
Ans. Volcanoes form when magma rises through cracks and weak points in the Earth's crust, creating a vent or opening. Over time, the accumulation of erupted material builds up around this vent, forming a volcanic mountain.
| 3. Are all earthquakes caused by volcanic activity? | |
Ans. No, not all earthquakes are caused by volcanic activity. While volcanic activity can trigger earthquakes, there are other causes as well. Earthquakes can also occur due to tectonic plate movements, such as when two plates collide or slide past each other along a fault line.
| 4. Can volcanic eruptions cause tsunamis? | |
Ans. Yes, volcanic eruptions can potentially cause tsunamis. When a volcano erupts underwater or near a body of water, the explosive force can displace a large volume of water, resulting in a tsunami. These volcanic tsunamis can be highly destructive and travel across long distances.
| 5. How do earthquakes impact human populations? | |
Ans. Earthquakes can have significant impacts on human populations. They can cause widespread damage to infrastructure, buildings, and homes, leading to loss of life and displacement of communities. Earthquakes can also trigger secondary hazards such as landslides, tsunamis, and even volcanic eruptions in some cases. Additionally, the psychological and emotional toll on affected individuals can be long-lasting.
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Oct 25, 2024 Last updated |
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