The citizens chosen by the French people to form the National Convention having assembled to the number of three hundred and seventy one, and having examined the credentials of the members, declare that the National Convention is organized. . .M. Manuel.he National Convention decrees that royalty is abolished in France. Proclamation of the Convention to the Nations, December 1792. Editor's Note: The Convention, after ridding France of the institution of monarchy, proposed to make its armies a means of propagating liberty and reform throughout Europe.
Plastics are made from carbon polymers. Carbon is used to form alloys with iron such as carbon steel. Graphite and clay are combined to make the lead used in pencils. Charcoal is commonly used for grilling food on barbeques.
Uses of limestone. Limestone, quicklime and slaked lime are all used to neutralise excess acidity-which may be caused by acid rain-in lakes and in soils. Limestone is used as a building material, and to purify iron in blast furnaces.It's also used in the manufacture of glass, and of cement (one of the components of concrete).he main uses of limestone and its products. 1  Limestone (CaCO 3) can be used as a building material and in the manufacturing of iron. 2  Glass-heated with sand and soda (sodium carbonate). 3  Cement-heated with clay in a kiln. 4  Concrete-mixed with sand, water and crushed rock. 5  Mortar-mixed with sand and water. 6  Quicklime-heated.