Volcanoes occur due to tectonic activity on the Earth. As tectonic plates slide past each other, collide, or spread apart, magma from the mantle can escape to the surface, forming volcanoes.Answer and Explanation: A crater is the large opening on the top of the volcano. When a volcano ...
Eruption from Etna volcanoThe word "volcano" comes from the Roman God of Fire, Vulcanus. Also the small volcanic island of Vulcano in the Eolian Islands off Sicily, was called after that god. Apparently, this island was highly active in Ancient times and people believed its crater was the ...
What is a crater in a volcano? What volcanoes are located along spreading plate boundaries? What are the types of volcanoes in Hawaii? What other disasters can an erupting volcano cause? The Hawaiian volcanoes are good examples of what type of volcanoes?
Volcanic Eruption How Volcanoes Erupt How Many Volcanoes Are There? Ring of Fire Volcanoes Volcano Crater Volcano Observatories Volcano Caldera Volcano Block Vulcan and Volcanoes Volcano Conduit Volcanic Tuff Lava Viscosity Volcano Hot Spot Maar Volcanoes Obsidian Basalt Igneous Rock Difference Between Active...
4. Why did the writer think the volcano eruption was an absolutely fantastic sight?5. Why was it difficult for the writer to walk to-wards the edge of the crater? 相关知识点: 试题来源: 解析 [. 1. His job is dangerous but he doesn't mind because dan- ger excites him and makes...
A. To lead in the topic. B. To put forward an argument. C. To state the moral of the text. D. To explain the reason of the project.33. What can we infer about Mons Rumker? A. It's lacking in rare earth elements nearby. B. It's a crater of a live volcano on the moon....
Officially, volcanologists consider a volcano active if it has erupted sometime during the Holocene Epoch, which started 11,700 years ago at the end of the last ice age. A volcano that hasn't erupted in the Holocene is considered extinct. This geologic-timescale-based distinction is somew...
What Is the Yellowstone Supervolcano? The Yellowstone Supervolcano is a massive volcanic system beneath the national park. It is one of the largest active volcanic systems in the world. The Yellowstone supervolcano has an enormous caldera, a large crater formed after a massive eruption empties the...
the atmosphere, producing global cooling. The crater atop Mount St. Helens is 2 square miles; however, the Yellowstone super volcano caldera is 1,500 square miles. The most recent Yellowstone eruption, 640,000 years ago, ejected 250 cubic miles of material, approximately 8,000 times as much ...
How hot is the magma chamber in a volcano? What type of magma does Krakatoa have? What type of magma does Popocatepetl have? What happens to the magma chamber in an eruption? What type of magma does Mount Vesuvius have? What is a crater in a volcano?