Definition of leader: A person or thing that holds a dominant or superior position within its field, and is able to exercise a high degree of control or influence over others. See also leadership. She wanted to be the leader of the group, because she thought that she had the best ideas out of anybody.
If so, chances are you already know what terracotta is. Terracotta is a clay-like earthenware ceramic that can be either glazed or unglazed. In addition to being used for flower pots, terracotta is also often used for water and sewage pipes, bricks and sculptures. The word âterracotta comes from the Italian words for âbaked earth..
Gypsum sheets are used in construction because they are fire resistant. Plaster of Paris is made of calcium sulfate that's been ground to a fine white powder. Hydrochloric acid can be used to distinguish calcium carbonate from gypsum.dill1971: There are other foods that calcium sulfate is used in. In the baking industry, calcium sulfate is used in flour, cereal, yeast, bread conditioners, baking powder, and cake icing.