Colloids exist in nature in the cells of plants and animals in the sap of certain plants among which...: ответ на тест 96181 - Английский язык

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Colloids exist in nature in the cells of plants and animals, in the sap of certain plants, among which is the rubber tree, and in the class of foods are called proteins. Colloids have recently come to be of tremendous importance in certain manufacturing processes, including the making of glass, rubber and artificial silk, tanning leather and dyeing.

Colloids exist in nature in the cells of plants and animals, in the sap of certain plants, among which is the rubber tree, and in the class of foods are called proteins. Colloids have recently come to be of tremendous importance in certain manufacturing processes, including the making of glass, rubber and artificial silk, tanning leather and dyeing.
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George Stephenson was a British inventor and engineer. He is famous for building the first practical railway locomotive. Stephenson was born in 1781 in England. During his youth he worked as a fireman and later as an engineer in the coal mines of Newcastle. He invented one of the first miner’s safety lamps independently of the British inventor Humphrey Davy. Stephenson’s early locomotives were used to carry loads in coal mines, and in 1823 he established a factory at Newcastle for their manufacture. In 1829 he designed a locomotive known as the Rocket, which could carry both loads and passengers at a greater speed than any locomotive at that time. The success of the Rocket was the beginning of the construction of locomotives and laying the railway lines.
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