knowledge want: GEMS -PRECIOUS MINERALS: A gemstone is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain ro...
INDUSTRIAL REVOLUTION Starts in Europe particularly in England in eighteen century.It changed the whole of Europe and England 's economy.During this period New machines are invented in England to speed up the spinning of wool and cotton .At first they were powered by water wheels but later steam engines are developed.Iron become cheaper and stronger as Iron making techniques improved.Canals are dug to carry coal from the mines and to transport finished goods.After ...
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