Class 6 Exam > Class 6 Videos > IGCSE Cambridge Science for Year 6 > Video: Earthquakes, Volcanoes and Mountains
Video: Earthquakes, Volcanoes and Mountains Video Lecture | IGCSE Cambridge Science for Year 6 - Class 6
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FAQs on Video: Earthquakes, Volcanoes and Mountains Video Lecture - IGCSE Cambridge Science for Year 6 - Class 6
| 1. How are earthquakes, volcanoes, and mountains related to each other? |  |
Ans. Earthquakes, volcanoes, and mountains are all related to the movement of tectonic plates in the Earth's crust. Earthquakes can occur when tectonic plates shift and release energy, while volcanoes form at plate boundaries where magma rises to the surface. Mountains are often formed by the collision of tectonic plates, leading to the uplift of land.
| 2. What are the main causes of earthquakes? | |
Ans. Earthquakes are mainly caused by the movement of tectonic plates in the Earth's crust. When these plates shift, they can create stress along faults, which eventually leads to the release of energy in the form of an earthquake. Other causes of earthquakes include volcanic activity, landslides, and human activities such as mining or reservoir-induced seismicity.
| 3. How do volcanoes form and erupt? | |
Ans. Volcanoes form when magma rises to the surface through a vent in the Earth's crust. This magma can come from deep within the Earth's mantle or from the melting of existing rock. When pressure builds up, the volcano can erupt, releasing ash, gas, and lava onto the surface. The type of eruption can vary from explosive to effusive, depending on the viscosity of the magma.
| 4. What role do mountains play in the Earth's ecosystem? | |
Ans. Mountains play a crucial role in the Earth's ecosystem by providing habitats for a wide variety of plants and animals. They also influence weather patterns, act as barriers to the movement of air masses, and help regulate the flow of rivers and streams. Mountains are also important for human activities such as agriculture, tourism, and recreation.
| 5. How do scientists monitor and predict earthquakes and volcanic eruptions? | |
Ans. Scientists use a variety of tools and techniques to monitor and predict earthquakes and volcanic eruptions. This includes seismometers to measure ground vibrations, GPS to track ground movements, and gas sensors to detect changes in volcanic gases. By studying these data, scientists can better understand the processes that lead to earthquakes and eruptions, and make more accurate predictions to help mitigate their impact.
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Nov 21, 2024 Last updated |
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