на 2 июля 1900 толпами людей, живущих в городесобрались, чтобы посмотреть первый дирижабль zeppelinподняться в воздух. подобные дирижабли были уже около 50 лет, но zeppelin был первый дирижабль с специальной конструкции, что позволило ему передвигаться быстрее, чем те, построенных до. изобретатель цеппелина был граффердинанд фон цеппелин. в 1910 году дирижабль deutschlandстал первым коммерческим дирижабль в мире. к началупервой мировой войны в 1914 году, дирижаблиездил за 172 000 км и перенесены 34000 пассажирских и rewбезопасно.
Ответ дал: Гость
linda will arange the students exchange, will not she ? your parents were not at the cinema yesterday, were they? denis can play the guitar, can' t he? we are not going to write her a letter, are we? you have a lot of friends, have not you? some members of his football team gave an interview to youth magazine, did they?
Ответ дал: Гость
recently the climate on the earth has changed greatly. some scientists think the world is becomming hotter. they predict that the temperature on the planet is expected to rise by 1,2-2 degrees by the end of the century. the climatic changes will lead to local emergencies in many regions. for example, the melting of ice will cause floods and some areas will be covered with water. besides, rising temperatures will bring droughts in some regions that could be a catastrophe.
many people say that it is so because of the greenhouse effect. it works like this: sunlight gives us heat. some of the heat warms the atmosphere, and some of the heat goes back into space. nowadays the air surrounding the earth has become much warmer because the heat can't go back into space. carbon dioxide in the atmosphere works like glass in a greenhouse and doesn't let much heat get out. so the atmosphere becomes warmer.
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