When a volcano erupts, lava may flow out. How does this lava flow affect the nearby forests? A. It will make the forests grow more luxuriantly because the lava contains a lot of water B. It will completely destroy the forests because of the high temperature and large area of the lava ...
Under the same conditions, if the magma were to have a higher amount of silica, the lava would become pasty and would work more towards making the volcano taller and create what is known as a lava dome atop the volcano. If there are high amounts of water present in a volcanic eruption...
根据第三段中的“Imagine shaking a soda bottle until the gas inside blows the cap off, and you can understand something of how a volcano erupts."可知,作者在 说明火山怎样喷发时打了一个比方。 A项正确 10.B 细节 解题。 根据第三段中的“If the magma is runny... Then the eruption is ...
M:Great,Mary!I know you will enjoy this.Did you know when the volcano erupts,our seats shake?I heard it is quite an experience.Look at the people getting off the ride.They look very satisfied.W:I'm sorry,but I don't think I can do this,even for pizza.How would you feel if I ...
If the temperature is very high, the rockmelts. What do we call this melted rock? Magma! So where can we seemagma? In volcanoes ! Inside the volcanoes, the temperature is over 700℃.So the temperature is high enough to melt rocks. When a volcano erupts,magma comes out. The colour of...
If the viscosity and the gas pressure are low enough, lava will flow slowly onto the earth's surface when the volcano erupts, with minimal explosion. While these effusive lava flows can reap considerable damage on wildlife and manmade structures, they are not particularly dangerous to people bec...
So if Mount Agung erupts violently, but doesn't sends massive amounts of sulfur dioxide into the air -- or doesn't send it high enough -- a longer-term global effect is unlikely. If this eruption is like previous eruptions of this volcano, though, then it will likely blast a significan...
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A common method is to devise a classification of volcanoes based on historical records: if a given type of volcano erupts more frequently after earthquakes, then it is considered more sensitive8,9,16,17. Unfortunately, the limited number of recorded events precludes statistically significant correlati...
Thisparticular volcanoerupts with smoke and fire, not lava. If you add iron or aluminum filings to the mixture, you can shoot a shower of sparks. Ketchup & Baking Soda Volcano Ketchup contains vinegar, which reacts with baking soda to produce an extra-special lava for a chemical volcano.Kin...