冰雪灾害的英语作文
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Natural calamities is that what be happened abnormal phenomena ,natural calamities sometimes are horrifying in Nature that human being is dependent on to damage brought about by human society.In them now that have earthquake ,volcanic eruption ,mud-rock flow ,seaquake ,stage manner ,flood etc.to dash forward sending out the nature disaster; Also have surface subsidence ,land desertification,are arid ,coastline change waits for gradient disaster appearing gradually in more longtime middle ability; Still have the environment disasters that the human being activity leads to such as ozonosphere change ,water body pollution ,loss of soil and water ,sour rain.These have complicated mutual connection between natural calamities and environmental disruption.Occurrence that human being asks to know these disasters on the significance from science

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