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What model helps scientists explain earthquakes and volcanic eruptions?
The tectonic plate model helps scientists explain earthquakes and volcanic eruptions. It states that the Earth's lithosphere is divided into large plates that float on the semi-fluid asthenosphere, which interact with each other at plate boundaries, leading to geological phenomena such as earthquakes along faults and volcanic eruptions at convergent plate boundaries.
What are less well known dangers of volcanic eruptions?
The fumes and chemicals that come out can kill u and/or kill you.
What are the young fold mountain ranges?
The fold mountains that formed less than about 25 million years back are considered young . These regions may be prone to Earthquakes and volcanic eruptions because the crust of the Earth is unstable
What is the percentage of a tsunami happening after an earthquake or volcanic eruptions?
Tsunamis are primarily triggered by undersea earthquakes, with approximately 80% of tsunamis resulting from seismic activity. Volcanic eruptions can also generate tsunamis, but they are less common. While not every earthquake or volcanic eruption leads to a tsunami, significant seismic events, particularly those above magnitude 6.5, have a higher potential for generating one. Overall, the likelihood of a tsunami occurring after such events varies based on factors like magnitude, depth, and location.
Why do volcanic eruptions differ?
The main cause of differences in volcanic eruption characteristics is due to the viscosity of the magma. High viscosity magmas are high in sticky silica which traps gas and produces explosive eruptions. Low viscosity magmas are low in silica and produce eruptions with far less energetic characteristics.
What will not upset the balance of nature?
Natural events such as wildfires, volcanic eruptions, or earthquakes generally do not upset the balance of nature as they are part of the natural cycle. Additionally, minimal human intervention in ecosystems, such as sustainable hunting and fishing practices, is less likely to disrupt the balance of nature.
What planet has seas called maria?
The planet with seas called "maria" is the Moon. These dark, flat plains were formed by ancient volcanic eruptions and are less cratered than the surrounding highlands. The term "maria" comes from the Latin word for "seas," as early astronomers mistakenly believed they were large bodies of water.
A characteristic of lava that determines the force of a volcanic eruption is?
The silica content of the lava plays a key role in determining the force of a volcanic eruption. High silica content makes lava more viscous, leading to more explosive eruptions, while low silica content results in less viscous lava and less explosive eruptions.
Explain why volcanic blocks would be uncommon on shield volcanoes?
Shield volcanoes are formed by the relatively quiet outpouring of lava, which results in a broad and gently sloping shape. Volcanic blocks are typically associated with explosive eruptions that occur in stratovolcanoes, where gas pressure causes fragmented volcanic material to be ejected. As shield volcanoes tend to have less explosive eruptions, the formation of volcanic blocks on their slopes is rare.
What kind of magmas produce violent volcanic eruptions?
Magmas with high viscosity and gas content tend to produce violent volcanic eruptions. High viscosity magmas are thicker and have more difficulty releasing gas, leading to pressure build-up and explosive eruptions. This often occurs with felsic or rhyolitic magmas.
How many times cyclone occur in India?
According to news reports cyclones occur very less in a year rather flood and drought have affected the country severely also storm takes place on hazardous level but cyclon,earthquakes,volcanic eruptions,severe snow storms,forest fire are rare
What happens during subduction?
Dense oceanic crust slides under less dense continental crust
