debris). 3. Describe the differences among shield volcanoes‚ strato- volcanoes‚ and cinder cones. How are these differences explained by the composition of their lavas and other factors? Shield volcanoes form when the products of eruption have low viscosity and are weak‚ so they do not pile up but spread. They are broad‚ gentle does that resemble a solder’s shield. Cinder cones are cone shaped piles of basaltic lapilli and blocks. Strato-volcanoes are large; cone shaped and is made of interleaved
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effect the human population surrounded by it. Cinder cone eruptions majorly impact the environment by distributing volcanic gases‚ volcanic landslides and blasting tephra. One of the long-term impacts on human environments caused by cinder cone volcanoes are volcanic gases. During major explosive eruptions‚ “huge amounts of volcanic gas” and ash are injected into the stratosphere. Most are removed within “several days to weeks” but volcanic
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Analyse the factors that causes differences in the hazards posed by volcanoes around the world (40 marks) A hazard can be define as something which poses a level of threat the life‚ health‚ property or environment‚ a volcano can compromise all these things through the many hazards volcanoes presents. Such as lahars‚ flash flooding‚ landslides‚ pyroclastic flows‚ ash clouds and many others. There are factors which can influence the severity of the hazard and cause differences in them and can be classified
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continents do move a couple of centimetres each year and so far they have been moving in constant unchanging directions thus giving a good hint that this part of proof toward the theory is true. It had been known for some time that earthquakes and volcanoes that exist in a line were connected‚ with the exception of places such as Hawaii and other small islands. This puzzled scientists until the tectonic
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that in mind‚ the short film ‘Lava’ is similar‚ as it talks about how two Volcanoes ‘Uku’ and ‘Lele’ are lovers and wait for a very long to be with each other. The film was inspired by a man‚ James Ford Murphy who went for a honeymoon to Hawaii with his wife. He came up with the idea of this short film when his sister got married at the age of 43. It made him wonder how there is always someone out there
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and Java‚ Sunda Strait and the Lesser Sunda Islands. A chain of volcanoes forms the topographic spine of these islands. At its peak‚ Krakatoa reached a height of 790 m (2‚600 ft) above sea level. His best known eruption occurred first in 416 AD However‚ this eruption destroyed the volcano of Krakatoa‚ which collapsed and formed a caldera 4 miles wide. Verlaten islands and Lang are remnants of this volcano‚ more then three volcanoes were combined to form the island of Krakatoa. Picture: simulation
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majority of these belts lie on the boundaries of the earth’s tectonic plates. The same is true of volcanoes and locations known for earthquakes‚ such as the Philippines‚ have many volcanoes.The Hawaiian Islands are located near the centre of the Pacific Plate. These islands of Hawaii experience plate movement‚ helping to form the volcanoes that created those islands. At the south of the island group‚ many volcanoes are still active‚ while those to the north are mainly dormant. The reason for this is that
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Unit 5 |1. |Rising air expands and cools; sinking air is compressed and warms. Typically‚ the size of the temperature change is: | | |A. | | |5oF/1000 ft change in elevation going up‚ and 3oF/1000 ft coming down | | |
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Volcanic and seismic events are major pieces of evidence towards proving that the plate tectonics theory is valid. The theory of tectonic plates was first posed by Alfred Wenger in 1912. Is the theory of how the earth lithosphere is made up of many separate pieces of the earth’s crust known as tectonic plates. He put forward the idea that all the earth’s continents were once conjoined in one supercontinent called Pangaea‚ and that these continents were moved by convection currents over a period
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We believe that the geography of Japan has had a heavy influence on the development of society‚ and we will state and explain the reason why throughout this essay. The following two sentences help to summarise the effect that Japan’s geography has had on its society “The Japanese have different lifestyles depending on their place of residence and their age or generation. Their eating habits‚ type of housing‚ language‚ style of thinking‚ and many other aspects of their everyday life hinge upon where
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