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.
Copper is much used for electrical wiring, either as a pure metal or in alloys with silver. Copper tubing was most commonly used for plumbing but nowadays PVC plastic is extensively used instead because of its much cheaper cost.Copper is also used to make jewelry and coinage.Copper is used in computers, it is used for building integrated circuts, and even chips. used in alloys like brass, bronze. it is a good conductor of electricity hence is used in electric wires. Copper has many uses, among which are: 1  Rooftops.et another answer Copper is sometimes used for covering roofs because it is much less expensive than gold, which is the very best metal to use against erosion! However, if it is situated in a corrosive atmosphere, over several years copper turns a light-green colour due to surface oxidation.