They look like small pieces of obsidian, smooth and shiny. But a set of small black fragments found inside the skull of a man who died in the eruption of Mount Vesuvius in Southern Italy, in the year 79 CE, are thought to be pieces of his brain—turned to glass. The discovery,reporte...
Volcanic eruptions can affect the climate. How does a large volcanic eruption affect the climate? A. Make the climate warmer B. Make the climate cooler C. Have no effect on the climate D. Make the climate more stable 相关知识点:
Volcanic eruptions are typically preceded by unrest, marked by increased seismicity, ground deformation, and gas emissions. Unrest can last from decades to minutes. Accurate eruption forecasting relies on real-time monitoring and understanding the volcano's past behavior. Long-term hazard assessments, ...
1How to Protect Yourself in a Volcanic Eruptionyourself. You also have to be careful while you're driving whenIt's been a week since Taal Volcano erupted. Since then,there's ashfall. 16more than 160,000 residents have been displaced, forced toMake sure that you share these tips with you...
The severity of the eruption depends mostly on the composition of the magma. The first question to address is: why does the magma erupt at all? The erupting force generally comes from internal gas pressure. The material that forms magma contains a lot of dissolved gases -- gases that have ...
Lava spewed from volcanic fissures in Iceland as a long-awaited eruption finally began, potentially threatening a power plant and the nearby town of Grindavík
Volcanologists are using powerful supercomputers to forecast volcanic eruptions. Fractures in rock along a volcano’s magma chamber can cause tiny movements along the volcano that indicate that an eruption is imminent. Scientists use GPS and satellites to measure this deformation and can input this ...
from the bottle. build the pressure up in the bottle by shaking it and release the pressure and all that $500 bottle of champagne comes gushing out the top. that is, in a basic sense, what happens for an explosive eruption of a volcano -- volcanic gases come out of solution as the ...
How can existing satellites predict volcanic eruption? A. They use monitoring systems to detect the presence of specific gases. B. They use sensors to detect the presence of specific gases. C. They detect the presence of specific gases by gathering data on the earth’s volcanoes. D. Their ...
The 1980 Mount St. Helens blast -- the most disastrous eruption in U.S history -- sent ash 15 miles into the sky, blew down millions of trees, spread ash into 11 states, and blew up a good portion of the mountain itself. But the eruption didn't send much sulfur dioxide into the ...