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..
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.