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.
Limestone has many industrial uses and can be used as mined or processed into a wide variety of products. It is the raw material for a large variety of construction, agricultural, environmental, and industrial materials. Limestone is used in construction almost everywhere. In 2007, crushed limestone was 68% of all crushed rock produced in the United States. Also, limestone is the key ingredient in making Portland cement.