Презентация по теме :" Человек-дитя природы".(10 класс) по учебнику O.V.Afanasyeva и I.V. Mikxeeva. Презентация посвещена землетрясеню 1815 года и его последствиям.
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prezentatsiya_chelovek-ditya_prirody.pptx | 549.37 КБ |
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The 1815 Tambora Eruption Work done by a student of 10 B class Govorova AliceСлайд 2
Mt. Tambora is on Sumbawa Island, in south Indonesia. It erupted from April 6 to 11, 1815, but the worst of this was at the end, from 10 to 11 April. The power is rated as 7 on the Volcanic Explosivity Index, making this eruption the most powerful in recorded history, four times more powerful than the 1883 Krakatoa eruption.
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This means that the Tambora eruption was 52,000 times more powerful than the Hiroshima Bomb. All the vegetation on Sumbawa was incinerated or uprooted, mixed with ash, and washed out to sea. The trees formed rafts 3 miles across. Pumice ash does not mix well with water, and one of these rafts of ash and wood drifted all the way to Calcutta, India.
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92,000 people were killed, most by starvation, the largest loss of life caused by a volcanic eruption in recorded history.
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The ash disrupted the weather, and caused global temperatures to decrease as much as 1.3 degrees Fahrenheit on average, an enormous drop. The finer ash remained in the atmosphere for 3 years and covered the entire planet, causing brilliant sunsets, and the famous “Year without a Summer,” in both North America and Europe.
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1816 was the coldest year of the 1810s, and the 1810s was the coldest decade of the century because of the eruption. 12 inches of snow fell in Quebec City from 6 to 10 June, 1816. Crops in the entire Northern Hemisphere were severely damaged.
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