A gabion is a welded wire basket or cage filled with earth or rocks. It is typically used to build a support or abutment.From Wikipedia: Gabion (from Italian gabbione meaning big cage; from Italian gabbia and Latin cavea meaning cage) are cages, cylinders, or boxes filled with soil or sand that are used in civil engineering, road building, and military applications.rom Wikipedia: Gabion (from Italian gabbione meaning big cage; from Italian gabbia and Latin cavea meaning cage) are cages, cylinders, or boxes filled with soil or sand that are used in civil engineering, road building, and military applications.
Subject:Chemistry. Books in this subject area deal with chemistry: the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions.
Chemistry is the branch of science which deals with the properties,  composition and the structure of matter. It also deals with  chemical reactions, changes in matter, and â¦ the principles which  govern these changes. In more simple terms it is about substances,  how they behave and how we can make new substances.