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focus 3 review test 1 group a-b

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эти два длинных узких коридора важны для всей страны, потому что сюда приходят члены парламента для голосования.

chemical pollution of atmosphere.the person pollutes atmosphere in the millenia, however consequences of the use of fire which it used all this period, were insignificant. it was necessary to be reconciled by that the smoke disturbed to breath and that soot laid down a black cover on a ceiling and walls of dwelling. received heat for the person was more important, than pure air and incomplete walls of a cave. this initial air pollution did not represent a problem for people lived then small groups, occupying unreasonably extensive untouched environment. and even the considerable concentration of people in rather small territory as it was in a classical antiquity, was not accompanied still by serious consequences.so was up to the beginning of the nineteenth century. only for last hundred years development of the industry "has presented" us with such productions which consequence in the beginning the person could not present itself yet. there were the cities-millionaires which growth it is impossible to stop. all is result of great inventions and gains of the person.the basic polluting substances.basically there are three basic sources of pollution of atmosphere: the industry, household boiler-houses, transport. the share of each of these sources in general, air pollution strongly differs depending on a place. now that most strongly pollutes air industrial production. sources of pollution - thermal power stations which together with a smoke throw out sulphurous and carbonic gas in air; the metallurgical enterprises, especially nonferrous metallurgy which throw out in air оксиды nitrogen, hydrogen sulphide, chlorine, fluorine, ammonia, connections of phosphorus, a particle and connection of mercury and arsenic; chemical and cement works. harmful gases get to air as a result of burning of fuel for needs of the industry, heating of dwellings, work of transport, burning and processing household and industrial wastes.

i spent most of the winter holidays in the city. i had planned to have a good rest, relax. i managed to do everything i had planned. there was a new year party in our school. it was very well organized and i enjoyed it.i think it is a kind and fairy holiday. people forgive each other, exchanges presents and good wishes. this new year's day i celebrated as always with my family at home. long before the holiday we had decorated the rooms and a fir tree. on the new year's day i helped my mother with cooking. every year we make a big cake. it is our family tradition. at midnight some people went outside and set off fireworks. it was so wonderful that it took my breath away.